From acea269f26e21738b0d0161f6d5e7c9e4941ec26 Mon Sep 17 00:00:00 2001
From: Xi Xu <i@xi-xu.me>
Date: Wed, 29 May 2024 17:22:20 +0800
Subject: [PATCH] Update

---
 bin/finalexam/Database/DataOutput.class       | Bin 0 -> 4259 bytes
 .../StandardIO/DateCalculation.class          | Bin 1451 -> 1499 bytes
 .../StandardIO/DateFormatOutput.class         | Bin 2671 -> 2719 bytes
 bin/finalexam/StandardIO/Encryption.class     | Bin 1102 -> 1150 bytes
 bin/finalexam/StandardIO/Expressions.class    | Bin 2030 -> 2078 bytes
 bin/finalexam/StandardIO/FileIO.class         | Bin 2290 -> 2203 bytes
 bin/finalexam/StandardIO/PrimeNumbers.class   | Bin 2035 -> 2083 bytes
 .../SecurePasswordSpecification.class         | Bin 1661 -> 1709 bytes
 .../StandardIO/StatisticsOfProducts.class     | Bin 1754 -> 1802 bytes
 .../StandardIO/StringInitialization.class     | Bin 1179 -> 1227 bytes
 .../StandardIO/SumInReverseOrder.class        | Bin 976 -> 1024 bytes
 src/finalexam/Database/DataOutput.java        |  81 ++++++++++++++++++
 src/finalexam/StandardIO/DateCalculation.java |   5 +-
 .../StandardIO/DateFormatOutput.java          |   2 +-
 src/finalexam/StandardIO/Encryption.java      |   2 +-
 src/finalexam/StandardIO/Expressions.java     |   2 +-
 src/finalexam/StandardIO/FileIO.java          |  55 ++++++------
 src/finalexam/StandardIO/PrimeNumbers.java    |   8 +-
 .../SecurePasswordSpecification.java          |   2 +-
 .../StandardIO/StatisticsOfProducts.java      |   2 +-
 .../StandardIO/StringInitialization.java      |   5 +-
 .../StandardIO/SumInReverseOrder.java         |   2 +-
 22 files changed, 119 insertions(+), 47 deletions(-)
 create mode 100644 bin/finalexam/Database/DataOutput.class

diff --git a/bin/finalexam/Database/DataOutput.class b/bin/finalexam/Database/DataOutput.class
new file mode 100644
index 0000000000000000000000000000000000000000..1b47854f710e8b20c1d75270b52edbd714453aa4
GIT binary patch
literal 4259
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literal 0
HcmV?d00001

diff --git a/bin/finalexam/StandardIO/DateCalculation.class b/bin/finalexam/StandardIO/DateCalculation.class
index 53f2ed722f8da3c9d46c4e159f359f801720c7ee..517b58d695ebf87bc07209c48994c662431638c7 100644
GIT binary patch
delta 572
zcmYL`%}!HM6otQY?=7c4*90kTLB&!5D?+`BfN0hFLs76TC?jJWG+3JwyqJ15jCAI}
zM53O=nG<J5jfsP5H1Pp^0S7*U&*0DI8g#VRUORiOb@q9k_@0P={q^Y!aF#1i<KN1P
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delta 618
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diff --git a/bin/finalexam/StandardIO/DateFormatOutput.class b/bin/finalexam/StandardIO/DateFormatOutput.class
index ab20d8b36b6e0c8a03488459cb026c796a416f63..47ed1242e85b512e6366940f41ed6ff875c85c5c 100644
GIT binary patch
delta 1263
zcmY*Y-%}e^6#h=K*}K{7jA6spZY!kLq)iNwiZs=zRYcTOT2Mr-5jBMnC}~1NsFbQ$
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delta 1218
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diff --git a/bin/finalexam/StandardIO/Encryption.class b/bin/finalexam/StandardIO/Encryption.class
index 27adc83dbf370e32c500c6fede7a0052e97e5638..953a95ef057f3cabfa454ea4efa1865f2fb46d67 100644
GIT binary patch
delta 573
zcmY+B!A=uV6o$V$o#|kim|`8JARrcWD%7GNDrmKiMXJS^G@2lqIH^skmT5CgjjY`G
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F=@;hJc8LH0

delta 474
zcmY+B%T5$g5Qe|gmpMbziw10%1_v9tI4z8Wiin^nG`At68=?sr6YVG&FgRnz)`XQV
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yc^;zSs`rul=?pNVj<SfsAfpOjQbQ~&RzKP~L*yhY5=Y`+_^JR;DXpmrjp{!NMOAA6

diff --git a/bin/finalexam/StandardIO/Expressions.class b/bin/finalexam/StandardIO/Expressions.class
index 9428481081ab7a805dc4faeaf3714deb6d1163bc..7ffbacf4f4daeaf140383939729360e443c7c141 100644
GIT binary patch
delta 881
zcmY+B%}*0i6vcn9Go2aBL<&U(zfhstN)bg6i=rYGC4vh0g@8KHN-L#B+9G}=Chm=x
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zrjvewHx!G7V?O#gW79>yaYBvQJ?@AGZH71}KY4aoJzTIEW<(m=9^<0TB`(W@+7;s}
z*G$IbvR1E+Ga*;B=i<8T)jN$e8Iw8rP!C&|$O>MB2IaDMyZoR(Xq>fJQ2mG=A+QJB
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z#P*>`?XD8d=hjE{R;_)k+bFSDMvaa~`%3J8Nq3Q_4MuH8g$x&YtjM7Xxmu*4$l(eJ
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x7cop`OadlB1vC}Fc27-BAn-#OY9v*$hZMI}w3PL{dhU=@%%@PEMV1f^zX6cFxmN%H

delta 830
zcmY+B$xl;J7{!0L@3rq)UbIXyI5A2K#R`H5P9Swa0cB7qgZiMgEki+QiLOjsnYb|K
z#*HQ{+;q<Z8%+EITxdxA7ff8~#+3{4zM3f9<i78m^WA%HzVp_7-w${{{@(fk^sx5Q
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z92Xs}_Mhfg7juLi@xWiPge&u%`Ucm6<$8|(EpEXkqcUtvJegop%~rrqrkF<kM}BaZ
zd$=g$8~0ULqmr-K%%~h@)!BLqb{NHD5H;`_)F_~-0+zE13yX_?DMO8zI_%;BaaB!a
Sy{LAIWyQP-J!F*(qT&x0+pN$4

diff --git a/bin/finalexam/StandardIO/FileIO.class b/bin/finalexam/StandardIO/FileIO.class
index de680b8e8ee2d0bdff3082fb24acaf444a63e2dc..b97c484b16ff36c89a3698b35380608b6afbdf3e 100644
GIT binary patch
delta 1213
zcmZ9L-%}e^6vsa|zcy?)2m}g?w3HS~(olj3DgkT}3Ze=AfL5W<vLq2w(ga8-XtmS_
zpM2`<ONaWNXI}!A(KlZ@)0zGS&iL+(GmbNMoRNAqI<|Occkemh^JBl~oO^$(eNd}E
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zJYoMdw-on7ar=q)q^)~zpW5*Aslua%l`hksbY?c1wF-r_9F@-%9gd^k9?$1jH`g@o
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zc}hy1FVi0Ln%=rlnR78;^?+vj+`Y50sxm$HH@^OzzA~@v5-V}vtg4Gul*=W)7G<cS
zTq|)$ls79%XNh%DE>@Je5-HQ?>D}io)8}=z<bYP<{iE2jgAE<U_IcYu&kDNpLij!j
z2d??oxt{k{g|5f+Hfay}0LomJaz5TYJTyIJ=D(HRxSf8;0FTSJN@SgSj&TBmP6C{x
znjT(aK>9c&J^W5?*CX+GEdD>y$j_KN{7y4}(4us?UIAKFGpALEfQr(t`sk2!a)$6b
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zDVZk71)d2_uSQNISb17BId?oGLDm0Ijffy_*}!mCFxb%WC&p7L)lFXVxmaUecE51j
Rl6RZW9KIsm<_mT({{~gT@nHY}

literal 2290
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z&n<s|;+8|ALrz?50#*C~s&Y%NsmeW7xuhyo4v_DSY_PEk*)#pRU%!6c{dM;|dG_!z
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zZTasB)FqN*0^xoqZ^lrEdIJ$e1)4IJZ4Q;@v!**LvjtP2CFA5|VNAM~;#Y)Wf7bE@
zc4c1ULNCqFOUoA6l9<fAbY;YMEqkUnIi_K=fDvq1PT;qWR!SC1rsrFZeZ(*OF*KuH
z`L;!%JyFYwj%@-lX?u&Nt4?UxF0eVUTJo(zY9uFZ+jL`yW2Z8-i@Pg^R&EVk+097T
zx^m66e08b=JJr!Q4ZMZD0=jLMeU&4DwnTEHKRWgcXp>WkspO&SF(hz6LvkGw)$k1*
z#36x*S1eeBrL$IOHIk+*9x;%@QMxiKy;+4{0A^Z87Z)<0S31WHyn}ZMx4BS~1tPUB
zchzF(O-|@I$usk^tfNOQEL%q(7hWl=gGHj}of1JGWQm-?ISpsmMKTa<8tBJ>z^0;f
zJ+mr$<+@eC2V%H@iyGb+Xna`?gVLWha1v=|BQY?L475Hp(1UdJ469xJTKEhbxP;3B
zTj%AR+3(mn>0h&aCcySs{61r>mBfJ>7%5Ok42-IpiYzLe6~bc%uHhpF!n6*(0GVwv
zq4XyVOsf8f<O+^Q{p<Kx!wrGf)tX5UpD*XkqN-a1p9HN`WS#r$%-r0lD|3V?EZrIU
z*;)fwfzULAYphn(YGEoVa~|??JXPIVThr{Y(DWiJaowqE<#JE(u9l4@s;b0w)!U|m
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zQ6$%`Rd8v&Y(~lY*2^B?ypryJRr-OFHm^wAkeOq2;do@5_7FqB60R`%tM{Hgi-(sm
zUV%PDe(FAx*(Q#Q6C4P2LGrWM#^7T7+k`eIeHT;S$)q3PhwLaeqnpF553TqG?RbJM
z_?7y9aQys<9ry=3@h>_=47)`G_K5BL;v~={Qv9eKN2fT6gy^Fs1?&{TBzTa>s{6z-
z<d6@%Ny6kR#1Gw8Ok;+Ab<)}_ECPNMPjM4-1gRT;qrkIKdh-|NVMC++FdP(lVu3a%
z(e#{`MKrh?nuGti#!-mp7)1RmQVj`8>PT2~>et%Z-u@qqr)YT23~*z`2!w{~VP4_!
aiV%F1NOd~?8J|1&LIuOsm-rgrBK|*kV;4C9

diff --git a/bin/finalexam/StandardIO/PrimeNumbers.class b/bin/finalexam/StandardIO/PrimeNumbers.class
index ccdcb2064bd01629d507b68607dac259c1f364de..dc73affe657ae2b14ffd56e51cad41143e18237b 100644
GIT binary patch
delta 890
zcmYL{O>k3H6vuz}y_?+h^;t?nLO$BGMv4t>sPd(JmXB5lEfpzJTSW;pKnh7q6A;`~
z7&dGen7aTrFpLWqI^#?i!GRgKIPP3H<I1%gS8mmMUSMGH-o5vn-}&GFIdlJB^-ZVu
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zOkS%u%2l5fX@yg%DdOX;Y-N6^SX;Q<m~1STOVynoF}i$0bldH!I}@YFr<XSsrdGb%
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z$2&gnvPpzWv$OVJXKnjT8ws}fY-OA6c6w7e-uKxa+^Xx9ugXyw!%m-F?6xPIE#YDI
z8TQ&cPSV}a0sEbki{u#f`GAA=H>Wo;OwngQhebM_7+0vl2otj8J%%~z^N|!4+~+-$
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zZJo9ELeonQo#Iu?L{?)!9mJJU!i{Idrk9C7Au~SEB)j_=x#=gYn+R>w-;#{$AL)C*
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zbr62M^1HCnBTYWEUxx>mIyl5CCdB28I4l#TD(7pg;W}~J#pxcxfnSa>DQi1la-5H)
zpH3Dz!4wWj=J<qZ=`2H5bf%==F*d&3eJWMH@Gq#(ggPma6yX(tQz66WhL|$s6s&gA
zS%(PnbnJ*JEPZkR;mTk7d*NL?`DcR}ic(1G4QbKMh~qACn<hth%Wpy)!Mc_=XcIDU
nq*}MOq0K*NWgHPK3+8Z^bFxMRsLEGkK~BK~zC<1OGO7OoUeKZ4

delta 900
zcmY+C$xl>45Qo2h)59Bvr_O+bj4T7VF$#{mBDkQqAP6XK;QEvY48owppkhpj%RgZH
zqKVNM4_-_(97Y3)R}*jC{1d!*@`w@ZL5%V6URPKDs_LumdK3A%BK-CD%x9p5@u%Ur
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z&Up87ZJC@RP?v18saBNyOW2alx|1F0@m!b$g<%wH9M-Z<;?m>Y+4QKV&~<IezAzg|
z+SL8U8F4d%DM{-MdRd2!Y?6pO?#P7KHJ~Up^QtVApuu4?DN}A$x0JBeVH?{8V{AfT
zVjYVR>9Lel$>e%+S<fA9@+o#Y?DE0&c>2CqEO)WTp^?4jfwiNinf*5V{&w(xu)_fk
znmMah3LkPfOsko<szc2j^-qqO8f#VjT!=P>st?gFOEOF|CmlK^t|#y%(H-V8S8c8+
zmM_vRHhI#`4LMxHHI2HpV1OZ;LGxHA1C6B3d;L;-Ax6xpU_y<V+rf?Mws{e}KPA@z
z>KFle5_mLAq<5O)kCb(6%2U2?mPGGIYC40v^jpee`V+O!S=Qhi>+{r~f1*`PSG->M
zKFyYfJUeFC4SAXZzJ8tWjOjcrd5*-if3EvqQ6%o-<06va=#u;O!Z+V}B2S0;P*6X$
zg5yM_-za?)<H;C}%6^g<4=JTcNcU6V^U_7PtVP`A6sKh@B4p{|3>IY!bCz?`Svggl
z7oVnG-g(KoAW@F!msGu?>Jv|#f&~%BgEkj!BFZMAAZo3yvIzO}W^#7J)TL)H7k=n>
zq7M+3f0ciS5-US3R=MP@5b8=+id`#{;`5dY5t6}YgF;dJ9BQ#@A=>_hR<<PxugkH;
X4f<sbiC|d1o6<f~N|E6ffh_Sqa44s9

diff --git a/bin/finalexam/StandardIO/SecurePasswordSpecification.class b/bin/finalexam/StandardIO/SecurePasswordSpecification.class
index 0838367b8f8fee6c0df177d853018f2bf0d0f933..9a2ec622b4d62e7770f72489c01fffbc49c138c3 100644
GIT binary patch
delta 809
zcmY*XO-~b16g_XI!)u49sja0HL=Z*$flgIGM2ccTL_ooc2#7jq#xh!3><p-h39J49
zGb?wRkaVLP7L{n?4>0;y^cQHoQ!VPu=H7Ge$GP{uAL89U_4CgUp8$+Pf2n?7VNl1P
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zvb;FS;CZN<c@-K?b0ixA&7wA2G7EObE*UztJA<>1CY6W!Ia2@Yu_-L4Vi*?%E@70R
zDQ^^V_9}xMjZL~lT3`(0&NnHXpTH!?)kc&07SgMFNzd9wN#Gi$7@AFMy7<&6rFF|7
zanW>aNyP+a1g`&~=hxSN(=I+MFz4djw8qSwX}efP;1;HwC-O48=X{mRDG7eMi3hZ0
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z{0LzX=OJN;@C2k9Iw5mh;0SV>nQ>?}iu(tW2y!W}dkLaQ2+LCe9~CIas~GV&y@9A3
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gY6$LO1lKVkYEbvkMr4F`5`oglr)hDYDoc3q3(LKiMF0Q*

delta 797
zcmY*XO-~b16g_XI!?eTGltP7qh@xme&_Yo}`4Wo?S`e&=fEp)cY)8wK%nT?CLtOL+
zm{}NCN@CKDZb+;|6Mq1I#zfaz@2g^P-sawO?mPFMH}}JVpIqDh_4zA+F+6yweH&HL
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zC}{Pbv-X}K4s*2Q2!qcup1BN7(O71miffxzZcubM%5e;x-Y)B`JHgR~liqih7>F{c
z&f4;_;W&Q8N#&7l7BqC@jEd6?jWsE=n4BRUH|yGlPBSIZ<IPE>`IL%_{|{Yjr{MyI
zIEFF8P**UloSSEmqp?XrT;lW^ml^8aVmhzeW45htP}^v1DXn1~S5;i`dgYesYnY%S
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zM>PGBw~*-oU0)Df*hc6RS~7_W+NQSA(Y=G?ui+1!DnkjyDoA)Aeeum+q^Q0gt?0v9
zkZpu<4*igDp6~>uDmoym7*G*Z$tY9NU8TBxkVKH6{NnkEqCr@J1Og;bidQfgtlI*w
z1^gWp`Mo?O56dHRzb{^qFzP*2nxko&%r{g<G_34kQY6D=w234ml94hFisYvEMp@sy
zMe~7HsE90XQ^OXlV2&b*Ts*-Yiey@zJmx9#k*gH$Vu5x`IGRNu#Hw^9KqE8yz{t`f
iP^D$s!w9ZnoL8a!L-#5p^d=D~d-usL?vb*D`@aDLnvv81

diff --git a/bin/finalexam/StandardIO/StatisticsOfProducts.class b/bin/finalexam/StandardIO/StatisticsOfProducts.class
index 5a4bfc7c873fa0abf6685e6fdcb3b6ff592b866f..894750ccbe2f2f50060d3dce0e22813b12b1c540 100644
GIT binary patch
delta 642
zcmYL`OHWf#6otQYA3fJ{)k?jTB3!GqNCl~&qJSa@h($mIUlm`4G^7SvBE{f{i6aLl
z&6#T$8K(@uKs0fxBd7cW2RL>l9(+#r-dXEpueJ8s+WTT(=+lpl4?r)|5<`$IuO!PI
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z*6!2pa+Z35Qz~i~`NB+)4!R_re?w}IV;cYC(d9fB)N7+5aM7iQUiI17vic;0>aE!w
zxWygGZMAJC%^or;YQ3^<I^0v6R;~3=kWjvr2uQL5Uyr_u+nG^=kUqJE-~bXti>`Y#
zGPg-Mvx>LQp<(Ae{>Z)|v)z6}vT2Q2XF%6@hivxjP5ewWP%YolxK4}uXh&kL8g5(T
z%o^vO+rqP*m7VQXT9X@eg9g=idwls4eOjf0Df$`E>LKoPnL!LHndAy-OgvHyaaG^W
zr;cGp2oNX2sAhF${h`0vYkE@zYlmuV$(ST8xo!$bRP5Jl#x-p)!42IVEp>M{?4;I%
MpdKIaNV|ys1nysa*8l(j

delta 584
zcmXYu%TH557{z~cADv6N(pze6OQo#}$c0Mrg#z+Wt000R_^S9S+K?LPO|TeuZd|z|
zvo~Soo)|C?-MMk&o}GVy3;qFcM3ecx`R1I-IhivbnsyF(KlZl10hf6$F$DhVn!nn=
zo|Qxe(O2a+<-$t6x>%TfQLfc0%MHYcOAf1E5jT&JP~#%&c%)oxT2vrft)qgL)wOtJ
zEC^n{4&#w=$&yo_MQ+gJxXTIJ1mRlcZM_(*%r901W~W~a(?O@?q`*5cT`boY3jZ#+
z_;jg=(dMMd|1~<L293NEqu|oZX%!f`zBFfD&XE&1^<cKXT&*pH>Eoj0f*^LFSPcr(
z8n0`%QeJZDXFz>7IzpFRh8R}6#*Q^ADXO35aA=l$lDjHq`Q{M!)rj@cnsF$pU;25E
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z+}<W#N`;d03+<b9t6e*h>(TI;4fHzy-WGA&S=;};PLIFEAZSo^hGyQ4FsfY|nb)6o
z1sxbqxJnU&X6CrYbxh(E7-L+Am7$dzOc0`t1UEG+HIw?!PHLqD);>vW$&|#C+%g5U
gH%7F~ZA}|Yb4TxvwtAo|`jAKZ7}n#Qc78_c4=xsL!~g&Q

diff --git a/bin/finalexam/StandardIO/StringInitialization.class b/bin/finalexam/StandardIO/StringInitialization.class
index f0c4134261da9838607c11857beeae2389655e25..923d9796617417f8cef375c4a006be1690d86209 100644
GIT binary patch
delta 551
zcmY+B-A)rx6otPtKOQ@sm}+eSl|NgsBh;!?6i^Xs!D=xkq#B|(6Emq*I&IqVhkIY3
znM<y?@>Y9Mj3hh&##iwXtOr4j$+_5juXWa5d+)8tw@7UN=hr=8iB*Xva5~#gXRhlA
ztm69@UNfjQ{I=wjApXjI>*h9Gznc4tNKSWtB#TJ~B?E%kKg!x>JMii@L!1$4HD8b@
z|3+(#T*+^~3D$y^=hhc2;+(TF84gQg_;{RAn=!^iU!+G;Oi0rI%Lc8QU$vR!LikAx
z9CMhGTnxX9!TD*jf@sjFG@D+l;I=)1ktsL@3x}M|<s-P<cy|a#NOIL?hI}}xjm@N(
zJ+N_IU}l~boF^7@EJ)`646b}XR=tmW+uY<<*wQ8pw^eP2TUy;%loUf--<;Kmsf8K{
zP9i~=DmGPRW0&}Pm&6Wd%Tql@R;PQMf0Wg;dj1QU@UuRdxm5YciEP49@1R!sU<j4$
zZTI)PT-hbHp55VEj~iiM&%ccET6Ksj<@}*Ow^>wK6qh^dplWeE=Pm^_5<KM|MRdlM
i^JP|)r~8UKgwZFBDJe<fl9c3ufRv@F?++D0qx=iUe{iP&

delta 479
zcmYL`O-~b16o#KWGtIT_giOIoQL%%R+JTN!v3{WV0V9eA-4HMYH#ejKw6@7uF)ZBq
z2gr3{;)<2~E{c(a#4Y{`|A=^t3zM^XPoDS9n{$4pzoxz8KR=FuIi5)@L9n+U?9FtG
zlAIv-TJ5OleP_EFEpMn+tC6G`A}=|sYa(x-V^}YW;u((-mlWr9TZ|fU(PflN`m-pl
z`dpTb3B1#wrfO|Q%bjGqwdpcWNs#Td<1LlUC5hS<IF(>M&QPWzxgr?)Z|Xy8qti%S
z0w(o<HSCwEx`a%ghAg!|G?G}oYxMg?E;X*{1<Nn^T<<rl3sRN!I9SbaliQM8`lD5_
zXSk!kSQE~UN^1J2_12k{%<E};w<?ezQaHv7%|pDkE`tXYmZo}KcwX&Md=c8AUH{I6
z{%w~lQ!C#X2=k7a{%+-yBaArOKRNDl^$>q8JYc%V4IMf4tsHL{Bx{oE|MI!ZtWjAM
z_qdNa7q580LoD*VG_RS*X3Q`#k4&cp!;avbP$DIHEb%11<cWasjAiVL2C#Vg7s8ub
Ai2wiq

diff --git a/bin/finalexam/StandardIO/SumInReverseOrder.class b/bin/finalexam/StandardIO/SumInReverseOrder.class
index 08ac167229f777f432c607a6734df9252476cc93..0823f791ad1ffcb2b488580d26b50ea2e76d8c26 100644
GIT binary patch
delta 406
zcmYLEO-lk%6g|&To=rncO_rHvS=vmN)AxsF&>~_$C=h~(ph1S1(5H-}*dmDjLCimK
zVNuWzXw^Pw+h1rA(Np?Z+;`96ocqqbFZ4PnK7Tzt0ocX%t@wIMAnvtFR?W4mtWGgR
zpj?<uQ!ktBT>n!jh6x6HLc_Joda-0OW;uNrL6~BcK>i;pUe;Z!B4G>>FG}M33ZfDM
zh!KR<LeFMbb%WI!Zqaotvy#(}L@0<$n8XwTWmd~Im`fn2n$b;|mN0{)cS91{SqUmM
zZgQ-q<<u<#ziMcPh%^=`=6{#x0f&ywegY(9pnGrRJ@13eFZYAr0?N@91kQluBb4Jd
zLU$N1q&t|%cb}a$64864V!X~enDah-8Ep|u+~1D~ma)SBkrBcw*5Kn^#yUp=g54dx
d1K}jK!8y1V#wJGuTbxn&J`o@ToMwAs?i*`gQk4Jz

delta 343
zcmXw!%}N4s6vco48D-1{nKI2x`>-@8ODp@1f)*_XTm-J7O)iF*$SKB2Y7zAcF)z{D
zg+)OR(5ih8&`U)0S88$ZIfrvD_ul)+hZcSRd3gi&*?Ne6sv1K<Oe7EDBs4|@##y7?
zsGK+4(@OoO<=ai2B%=bwaRrH5-*ql3mV0^S*L}}!G<TvHjOm0)2ad?*3^F=dCIp&m
zU;CEp3)G@%4G?EaXPR8_D017gI(Z5*<k@Z8YuSQO(K4+lMdme3LHvK$q35`NyL3t{
z1R>?CDhK5gx2S|9=3g<6It)LNs+GEo@AleWhsn${Gg(<DUFL$KS~eFc%lsf|Dl8%Y
rCBZT)C=v~-lBq;`mj!p~abZ<zq?ck%GQql38p=0e5tDMGZ*KkqC^SDI

diff --git a/src/finalexam/Database/DataOutput.java b/src/finalexam/Database/DataOutput.java
index e69de29..094ea45 100644
--- a/src/finalexam/Database/DataOutput.java
+++ b/src/finalexam/Database/DataOutput.java
@@ -0,0 +1,81 @@
+package finalexam.Database;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.util.Scanner;
+
+import jxl.Workbook;
+import jxl.write.Label;
+import jxl.write.WritableSheet;
+import jxl.write.WritableWorkbook;
+
+public class DataOutput {
+    private static final String DBDRIVER = "com.mysql.cj.jdbc.Driver";
+    private static final String DBURL = "jdbc:mysql://localhost:3306/xiaoshou?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=GMT";
+
+    public static void main(String[] args) throws Exception {
+        Class.forName(DBDRIVER);
+        Connection conn = DriverManager.getConnection(DBURL);
+        PreparedStatement pstmt = null;
+        ResultSet rs = null;
+        Scanner sc = new Scanner(System.in);
+        System.out.println("===****超市商品管理维护====");
+        System.out.println("1、导出商品信息至excel");
+        System.out.println("2、导出商品信息至文本文件");
+        System.out.println("3、返回主菜单");
+        System.out.print("请选择（1-3）：");
+        int choice = sc.nextInt();
+        switch (choice) {
+            case 1:
+                WritableWorkbook workbook = Workbook.createWorkbook(new File("商品导出.xls"));
+                WritableSheet sheet = workbook.createSheet("商品信息", 0);
+                sheet.addCell(new Label(0, 0, "条码"));
+                sheet.addCell(new Label(1, 0, "名称"));
+                sheet.addCell(new Label(2, 0, "单价"));
+                sheet.addCell(new Label(3, 0, "供应商"));
+                pstmt = conn.prepareStatement("SELECT * FROM t_shangping");
+                rs = pstmt.executeQuery();
+                int row = 1;
+                while (rs.next()) {
+                    sheet.addCell(new Label(0, row, rs.getString("tiaoma")));
+                    sheet.addCell(new Label(1, row, rs.getString("mingcheng")));
+                    sheet.addCell(new Label(2, row, rs.getString("danjia")));
+                    sheet.addCell(new Label(3, row, rs.getString("gongyingshang")));
+                    row++;
+                }
+                workbook.write();
+                workbook.close();
+                System.out.println("成功导出" + (row - 1) + "条商品数据到excel中");
+                break;
+            case 2:
+                FileWriter fw = new FileWriter("商品导出.txt");
+                BufferedWriter bw = new BufferedWriter(fw);
+                bw.write("条码\t名称\t单价\t供应商\n");
+                pstmt = conn.prepareStatement("SELECT * FROM t_shangping");
+                rs = pstmt.executeQuery();
+                while (rs.next()) {
+                    bw.write(rs.getString("tiaoma") + "\t");
+                    bw.write(rs.getString("mingcheng") + "\t");
+                    bw.write(rs.getString("danjia") + "\t");
+                    bw.write(rs.getString("gongyingshang") + "\n");
+                }
+                bw.close();
+                fw.close();
+                System.out.println("成功导出XXX条商品数据到txt中");
+                break;
+            case 3:
+                break;
+            default:
+                System.out.println("无效的选择，请重新选择（1-3）：");
+                break;
+        }
+        rs.close();
+        pstmt.close();
+        conn.close();
+    }
+}
diff --git a/src/finalexam/StandardIO/DateCalculation.java b/src/finalexam/StandardIO/DateCalculation.java
index 1489676..60cf9ae 100644
--- a/src/finalexam/StandardIO/DateCalculation.java
+++ b/src/finalexam/StandardIO/DateCalculation.java
@@ -3,7 +3,7 @@ package finalexam.StandardIO;
 import java.util.Scanner;
 
 public class DateCalculation {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         Scanner sc = new Scanner(System.in);
         String s = sc.nextLine();
         String[] arr = s.split("[-]");
@@ -14,9 +14,8 @@ public class DateCalculation {
         if (isLeapYear(year))
             days[2] = 28;
         int ans = day;
-        for (int i = 1; i < month; i++) {
+        for (int i = 1; i < month; i++)
             ans += days[i];
-        }
         System.out.println(ans);
     }
 
diff --git a/src/finalexam/StandardIO/DateFormatOutput.java b/src/finalexam/StandardIO/DateFormatOutput.java
index 90231ab..b5887b5 100644
--- a/src/finalexam/StandardIO/DateFormatOutput.java
+++ b/src/finalexam/StandardIO/DateFormatOutput.java
@@ -3,7 +3,7 @@ package finalexam.StandardIO;
 import java.util.Scanner;
 
 public class DateFormatOutput {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         char[] num = { '〇', '一', '二', '三', '四', '五', '六', '七', '八', '九' };
         Scanner sc = new Scanner(System.in);
         String s = sc.next();
diff --git a/src/finalexam/StandardIO/Encryption.java b/src/finalexam/StandardIO/Encryption.java
index 6641aad..a2868f9 100644
--- a/src/finalexam/StandardIO/Encryption.java
+++ b/src/finalexam/StandardIO/Encryption.java
@@ -3,7 +3,7 @@ package finalexam.StandardIO;
 import java.util.Scanner;
 
 public class Encryption {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception{
         Scanner sc = new Scanner(System.in);
         String s = sc.nextLine();
         String k = sc.nextLine();
diff --git a/src/finalexam/StandardIO/Expressions.java b/src/finalexam/StandardIO/Expressions.java
index 7521d91..b400076 100644
--- a/src/finalexam/StandardIO/Expressions.java
+++ b/src/finalexam/StandardIO/Expressions.java
@@ -3,7 +3,7 @@ package finalexam.StandardIO;
 import java.util.Scanner;
 
 public class Expressions {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception{
         Scanner sc = new Scanner(System.in);
         String s = sc.nextLine();
         String[] arr = s.split("[\\(\\),]");
diff --git a/src/finalexam/StandardIO/FileIO.java b/src/finalexam/StandardIO/FileIO.java
index e09a62b..7b5484b 100644
--- a/src/finalexam/StandardIO/FileIO.java
+++ b/src/finalexam/StandardIO/FileIO.java
@@ -2,42 +2,37 @@ package finalexam.StandardIO;
 
 import java.io.File;
 import java.io.FileWriter;
-import java.io.IOException;
 import java.util.Scanner;
 
 public class FileIO {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         File fQ = new File("question.txt");
         File fA = new File("answer.txt");
-        try {
-            Scanner sc = new Scanner(fQ);
-            FileWriter fw = new FileWriter(fA);
-            while (sc.hasNextLine()) {
-                String s = sc.nextLine();
-                String[] arr = s.split("[\\(\\),]");
-                double ans = 0;
-                switch (arr[0]) {
-                    case "add":
-                        ans = Double.parseDouble(arr[1]) + Double.parseDouble(arr[2]);
-                        break;
-                    case "sub":
-                        ans = Double.parseDouble(arr[1]) - Double.parseDouble(arr[2]);
-                        break;
-                    case "max":
-                        ans = Math.max(Double.parseDouble(arr[1]), Double.parseDouble(arr[2]));
-                        break;
-                    case "min":
-                        ans = Math.min(Double.parseDouble(arr[1]), Double.parseDouble(arr[2]));
-                        break;
-                    case "doubleMe":
-                        ans = Double.parseDouble(arr[1]) * 2;
-                        break;
-                }
-                fw.write(s + "=" + ans + '\n');
+        Scanner sc = new Scanner(fQ);
+        FileWriter fw = new FileWriter(fA);
+        while (sc.hasNextLine()) {
+            String s = sc.nextLine();
+            String[] arr = s.split("[\\(\\),]");
+            double ans = 0;
+            switch (arr[0]) {
+                case "add":
+                    ans = Double.parseDouble(arr[1]) + Double.parseDouble(arr[2]);
+                    break;
+                case "sub":
+                    ans = Double.parseDouble(arr[1]) - Double.parseDouble(arr[2]);
+                    break;
+                case "max":
+                    ans = Math.max(Double.parseDouble(arr[1]), Double.parseDouble(arr[2]));
+                    break;
+                case "min":
+                    ans = Math.min(Double.parseDouble(arr[1]), Double.parseDouble(arr[2]));
+                    break;
+                case "doubleMe":
+                    ans = Double.parseDouble(arr[1]) * 2;
+                    break;
             }
-            fw.close();
-        } catch (IOException e) {
-            e.printStackTrace();
+            fw.write(s + "=" + ans + '\n');
         }
+        fw.close();
     }
 }
diff --git a/src/finalexam/StandardIO/PrimeNumbers.java b/src/finalexam/StandardIO/PrimeNumbers.java
index 750fc21..4f3e634 100644
--- a/src/finalexam/StandardIO/PrimeNumbers.java
+++ b/src/finalexam/StandardIO/PrimeNumbers.java
@@ -4,14 +4,13 @@ import java.util.ArrayList;
 import java.util.Scanner;
 
 public class PrimeNumbers {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         Scanner sc = new Scanner(System.in);
         int n = sc.nextInt();
         ArrayList<Integer> primes = new ArrayList<>();
-        for (int i = 2; i < n; i++) {
+        for (int i = 2; i < n; i++)
             if (isPrime(i))
                 primes.add(i);
-        }
         System.out.print(primes.size() + "(分别是");
         for (int i = 0; i < primes.size(); i++) {
             System.out.print(primes.get(i));
@@ -24,10 +23,9 @@ public class PrimeNumbers {
     static boolean isPrime(int n) {
         if (n <= 1)
             return false;
-        for (int i = 2; i <= Math.sqrt(n); i++) {
+        for (int i = 2; i <= Math.sqrt(n); i++)
             if (n % i == 0)
                 return false;
-        }
         return true;
     }
 }
diff --git a/src/finalexam/StandardIO/SecurePasswordSpecification.java b/src/finalexam/StandardIO/SecurePasswordSpecification.java
index b4b740e..55b3a3e 100644
--- a/src/finalexam/StandardIO/SecurePasswordSpecification.java
+++ b/src/finalexam/StandardIO/SecurePasswordSpecification.java
@@ -3,7 +3,7 @@ package finalexam.StandardIO;
 import java.util.Scanner;
 
 public class SecurePasswordSpecification {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         Scanner sc = new Scanner(System.in);
         String s = sc.next();
         System.out.println(isSafePassword(s) ? "success" : "fail");
diff --git a/src/finalexam/StandardIO/StatisticsOfProducts.java b/src/finalexam/StandardIO/StatisticsOfProducts.java
index 12a318c..b98017d 100644
--- a/src/finalexam/StandardIO/StatisticsOfProducts.java
+++ b/src/finalexam/StandardIO/StatisticsOfProducts.java
@@ -33,7 +33,7 @@ class Goods {
 }
 
 public class StatisticsOfProducts {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         Scanner sc = new Scanner(System.in);
         Goods[] goods = new Goods[5];
         double sum = 0;
diff --git a/src/finalexam/StandardIO/StringInitialization.java b/src/finalexam/StandardIO/StringInitialization.java
index 3f3883a..4e386f7 100644
--- a/src/finalexam/StandardIO/StringInitialization.java
+++ b/src/finalexam/StandardIO/StringInitialization.java
@@ -3,17 +3,16 @@ package finalexam.StandardIO;
 import java.util.Scanner;
 
 public class StringInitialization {
-    public static void main(String[] var0) {
+    public static void main(String[] args) throws Exception {
         Scanner sc = new Scanner(System.in);
         String s = sc.nextLine();
         char[] c = s.toCharArray();
         c[0] = Character.toUpperCase(c[0]);
-        for (int i = 1; i < c.length; i++) {
+        for (int i = 1; i < c.length; i++) 
             if (c[i - 1] != ',' && c[i - 1] != ' ')
                 c[i] = Character.toLowerCase(c[i]);
             else
                 c[i] = Character.toUpperCase(c[i]);
-        }
         System.out.println(new String(c));
     }
 }
diff --git a/src/finalexam/StandardIO/SumInReverseOrder.java b/src/finalexam/StandardIO/SumInReverseOrder.java
index eafb5fd..cdd0f5a 100644
--- a/src/finalexam/StandardIO/SumInReverseOrder.java
+++ b/src/finalexam/StandardIO/SumInReverseOrder.java
@@ -3,7 +3,7 @@ package finalexam.StandardIO;
 import java.util.Scanner;
 
 public class SumInReverseOrder {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         Scanner sc = new Scanner(System.in);
         int n1 = sc.nextInt();
         int n2 = sc.nextInt();