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`P$_0E1`8$+*A$0C4$64?1*A$K+)5$E1>,A$D4$2_0C544`P$_B1>5`8$GGG $$$YY-#(#$0C4$?1>*0$/40C1A$1B$"+)5$01$K5)*0$1>0$C1E$/+*<$1B$0C4$K+)56 $$$$$)*$0C4$+55+<$/+0?C$0C4$K+)5$?1*0+)*)*L$<1>5$*+/4G XW )%#(,/#(1$&',(6'7(86.9(&1(,/#(1&00&:*';(,:&(46;#%(<*1("&5('##7(,/6,(35./(%46.#=(,&(:$*,#("&5$( 4$&;$63> 9

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6 $%G QC)?C$1B$0C4$B1,,1E)*L$60+04/4*06$)6$?1554?0b 2+8 =A4*0)B)456$?+*$>64$6</D1,6$6>?C$+6$b$15$cG 2D8 =A4*0)B)456$?+*$D4$/+A4$>K$1B$,400456P$A)L)06P$+*A$0C4$>*A456?154$2d8$?C+5+?045G 2?8 =A4*0)B)456$+54$*10$?+64$64*6)0)R4G 2A8 #K+?46$+54$K45/)004A$)*6)A4$)A4*0)B)456G 248 e*,<$1*4$)a4*0)b)45$k45$?,+66$)6$+,,1e4ag $9G QC)?C$1B$0C4$B1,,1E)*L$?1>*06$0C4$*>/D45$1B$?C+5+?0456$)*$+$605)*Lb #05)*L$L5440)*L$f$_;4,,1P$Q15,Ag`h 2+8 )*0$*$f$L5440)*LG?1>*028h 2D8 )*0$*$f$L5440)*LG6)Z428h 2?8 )*0$*$f$L5440)*LG,4*L0C28h 2A8 )*0$*$f$L5440)*LG*>/D4528h 248 O1*4$1B$0C4$+D1R4 $ag QC)?C$1B$0C4$B1,,1E)*L$60+04/4*06$)6$?1554?0$+D1>0$0C4$B1,,1E)*L$?1A4b String x = hello ; String y = jello ; x = y; int z = 3; int w = z; 2+8 HC4$R+5)+D,46$.$+*A$<$D10C$54B45$01$0C4$6+/4$1Di4?0G 2D8 HC4$R+5)+D,46$Z$+*A$E$D10C$54B45$01$0C4$6+/4$1Di4?0G 2?8 ZP$EP$.P$<$+54$4.+/K,46$1B$54B454*?4$R+5)+D,46G 2A8 ZP$EP$.P$<$+54$4.+/K,46$1B$R+5)+D,46$1B$K5)/)0)R4$0<K4G 248 7,,$1B$0C4$+D1R4G j

7 $NG QC+0$K54R4*06$0C4$0C4$B1,,1E)*L$/40C1A$2EC)?C$)6$*10$+$?1*605>?0158$B51/$?1/K),)*Lb public empty() { 2+8 0C4$4/K0<$K+5+/4045$,)60 2D8 0C4$54645R4A$/40C1A$*+/4 2?8 0C4$4/K0<$D1A< 2A8 0C4$/)66)*L$540>5*$0<K4 248 *1*4$1B$0C4$+D1R4$2)0$?1/K),468 $JG HC4$K51?466$1B$_C)A)*L`$1Di4?0$A+0+$+*A$K51R)A)*L$/40C1A6$B15$A+0+$+??466$)6$?+,,4AI 2+8 3)50>+,)Z+0)1*$$$$$2D8$-*?+K6>,+0)1*$$$$$2?8$S1?>/4*0+0)1*$$$$$2A8$!k!$$$$$248$7D605+?0)1* $jg $HC4$B1,,1E)*L$+54$)*)0)+,)Z4A$E)0C$+$A4B+>,0$R+,>4$EC4*$<1>$A1$*10$4.K,)?)0,<$640$0C4/$)*$+$?1*605>?015I 2+8 edi4?0$r+5)+d,46 2D8 "5)/)0)R4$R+5)+D,46 2?8 "+5+/4045$R+5)+D,46 2A8 l1?+,$r+5)+d, =*60+*?4$B)4,A6 $mg #>KK164$+$046045$K51L5+/$k<!,+66H46045$2B15$0460)*L$k<!,+668$K51A>?46$0C)6$1>0K>0G 1500 Expected: 2000 QC+0$)6$0C4$?+>64$B15$0C4$45515b 2+8 7$?1/K),+0)1*$ D8 7*$45515$)*$0C4$)/K,4/4*0+0)1*$1B$k<!,+66 2?8 7*$45515$)*$0C4$)/K,4/4*0+0)1*$1B$k<!,+66H A8 7*$45515$)*$4)0C45$k<!,+66$15$k<!,+66H O1*4$1B$0C4$+D1R4 m

8 $:G QC+0$)6$K5)*04A$)*$0C4$B1,,1E)*Lb$ $$System.out.println(23 / 5); 2+8 J$$$$$$$$$$$$2D8$$N$$$$$$$$$2?8$$$a$$$$$$$$$$$2A8$$$NGj$$$$$$$$$$$248$O1*4$1B$0C4$+D1R4 $'G n+64a$1*$0c4$b1,,1e)*l$?1a4$b5+l/4*0p$ec+0$)6$0c4$r+,>4$1b$.*#23-/$(.4+*2(b double price = 15.00; double discount = 1.95; double discountedprice = price - discount; ?0,<$%a 2D8 4.+?0,<$%aG&J 2?8 +KK51.)/+04,<$%aG&J 2A8 4.+?0,<$%aG&N 248 *1*4$1B$0C4$+D1R4YY0C4$?1A4$B5+L/4*0$C+6$+*$45515 $%&GQC)?C$1B$0C4$B1,,1E)*L$60+04/4*06$)6$4F>)R+,4*0$01I balance = balance + amount; 2+8 D+,+*?4$ff$+/1>*0h 2D8 D+,+*?4$of$+/1>*0h 2?8 D+,+*?4$fo$+/1>*0h 2A8 D+,+*?4$off$+/1>*0h 248 D+,+*?4ooh $%%G$7$?1*60+*0$)6$A4?,+54A$E)0C$EC)?C$1B$0C4$B1,,1E)*L$M4<E15A6b 2+8 R1)A 2D8 60+0)? 2?8 B)*+, 2A8 )*0 248?1*60 :

9 $%9G$7$60>A4*0V6$5+*M$)6$%$)B$0C4$LK+$)6$+0$,4+60$aGJG$HC4$5+*M$)6$9$)6$0C4$LK+$)6$+0$,4+60$aG&G$ e0c45e)64$5+*m$)6$ag$qc)?c$1b$0c4$b1,,1e)*l$60+04/4*06$?1/k>046$0c4$5+*m$?1554?0,<b 2+8 )B$2LK+$pf$&8$5+*M$f$ah 4,64$)B$2LK+$pf$aG&8$5+*M$f$9h 4,64$5+*M$f$%h 2D8 5+*M$f$ah )B$2LK+$pf$aG&8$5+*M$f$9h 4,64$)B$2LK+$pf$aGJ8$5+*M$f$%h 2?8 )B$2LK+$pf$aGJ8$5+*M$f$%h )B$2LK+$pf$aG&8$5+*M$f$9h 5+*M$f$ah 2A8 )B$2LK+$pf$aGJ8$5+*M$f$%h 4,64 q $$$)B$2LK+$pf$aG&8$5+*M$f$9h $$$5+*M$f$ah r 248 O1*4$1B$0C4$+D1R4G $%ag$hc4$?+54b>,$k51l5+//45i 2+8 A46)L*6$0C4$?1A4$61$E4,,$0C+0$0460$?+646$+54$*10$54F>)54AG 2D8 *4R45$/+M46$+$/)60+M4G 2?8?1,,+D15+046$E)0C$+$0460$4*L)*445$EC1$0+M46$?+54$1B$0460)*LG 2A8 A46)L*6$0460$?+646$EC4*$0C4$?1A4$)6$?1/K,404G 248 A46)L*6$0460$?+646$D4B154$E5)0)*L$0C4$?1A4G $%NG$QC+0$)6$0C4$1>0K>0$B51/$0C4$B1,,1E)*L$?1A4$B5+L/4*0b String a = boo ; String b = b + oo ; System.out.println(a == b); >4$$$$$2D8$B+,64$$$$$2?8$+$ff$D$$$$$2A8$D11$ff$D11$$$$$248$O1*4$1B$0C4$+D1R4 '

10 $%JG$=B$+$,11K$)6$4.4?>04A$B15$+$A4B)*)04$*>/D45$1B$0)/46P$+2*8$dddddddddd$,11K$)6$>6>+,,<$+KK51K5)+04G *A1/$$$$$2D8$*4604A$$$$$2?8$)*B)*)04$$$$$2A8$B15$$$$$248$54?>56)R4 $%jg$qc+0$a146$0c4$b1,,1e)*l$?1a4$b5+l/4*0$1>0k>0b sum = 0; for (i = 1; i <= 10; i++); sum = sum + i; System.out.println(sum); 2+8 & 2D8 % 2?8 %% 2A8 JN 248 JJ $%mg$qc+0$)6$0c4$1>0k>0$b51/$0c4$b1,,1e)*l$?1a4$b5+l/4*0b for (int i = 0; i < 3; i++) { for (int j = 0; j < i; j++) { System.out.print( * ); System.out.println(); 2+8 X XX XXX 2D8 XXX XX X 2?8 XXX XXX XXX 2A8 XXXXXXXXXXX 248 O1*4$1B$0C4$+D1R4 %&

11 $%:G$QC)?C$1B$0C4$B1,,1E)*L$,11K6$/+<$?+>64$_)*B)*)04`$,11K)*Lb 2+8 B15$2)*0$)$f$%h$)$sf$*h$)oo8$q$r 2D8 B15$2)*0$<4+56$f$*h$<4+56$p$&h$<4+56YY8$q$r 2?8 B15$2)*0$)$f$%h$)$sf$%&h$)oo8$q$r 2A8 B15$2)*0$)$f$*h$)$s$%&h$)YY8$q$r 248 O1*4$1B$0C4$+D1R4$2+,,$B15$,11K6$+54$)*C454*0,<$6+B48 $%'G$#>KK164$."$"$)6$+$9S$+55+<G$$HC4$*>/D45$1B$51E6$)6$L)R4*$D<I 2+8 A+0+\&]$$$$$2D8$A+0+G,4*L0C28$$$$$2?8$A+0+G,4*L0C$$$$$2A8$A+0+\&]G,4*L0C$$$$$248$O1*4$1B$0C464 $9&G$QC)?C$1B$0C4$B1,,1E)*L$60+04/4*06$)6$$+-(b 2+8 ^1>$?+**10$)*6450$+*$1Di4?0$)*$0C4$/)AA,4$1B$+*$+55+<$,)60G 2D8 $ 755+<$,)606$$?+*$?1*0+)*$4,4/4*06$1B$K5)/)0)R4$0<K4G 2?8 HC4$,4*L0C$1B$+*$+55+<$,)60$?+**10$D4$?C+*L4AG 2A8 ^1>$/>60$6K4?)B<$0C4$6)Z4$1B$+*$+55+<$,)60$EC4*$<1>$?1*605>?0$)0G 248 $O1*4$1B$0C4$+D1R4$2+,,$+D1R4$60+04/4*06$+54$B+,648 $9%G$QC+0$A146$0C)6$?1A4$B5+L/4*0$540>5*$2+66>/)*L$0C+0$"223-/$#$)6$+*$+55+<$,)60$1B$n+*M7??1>*0$ 1Di4?068b BankAccount b = accounts.get(0); for (int i = 1; i < accounts.size(); i++) { BankAccount a = accounts.get(i); if (a.getbalance() > b.getbalance()) b = a; return b; 2+8 HC4$R+,>4$1B$0C4$6/+,,460$D+,+*?4 2D8 HC4$D+*M$+??1>*0$E)0C$0C4$,+5L460$D+,+*?4 2?8 HC4$D+*M$+??1>*0$E)0C$0C4$6/+,,460$D+,+*?4 %%

12 2A8 HC4$R+,>4$1B$0C4$,+5L460$D+,+*?4 248 O1*4$1B$0C4$+D1R4 $99G$QC4*$A46)L*)*L$?,+6646P$+$5>,4$1B$0C>/D$)6$0C+0$+$?,+66$*+/4$6C1>,A$D4$ 2+8$*1>*$$$$$2D8$R45D$$$$2?8$$+Ai4?0)R4$$$2A8$$+AR45D$$$248$K54K16)0)1* $9aG$72*8$dddddddddd$B)4,A$D4,1*L6$01$0C4$?,+66P$*10$01$+*<$1Di4?0$1B$0C4$?,+66G 2+8 )*60+*?4$$$$2D8$K5104?04A$$$$$2?8$K5)R+04$$$$$2A8$K>D,)?$$$$$248$60+0)? $9NG$QC+0$A146$0C4$B1,,1E)*L$?1A4$B5+L/4*0$1>0K>0b public static void makedeposit(bankaccount b) { b.deposit(100); public static void makewithdrawal(bankaccount b) { b = new BankAccount(0); public static void main(string[] args) { BankAccount x = new BankAccount(1000); makedeposit(x); System.out.print(x.getBalance()); makewithdrawal(x); System.out.println( + x.getbalance()); 2+8 %%&&$%%&&$$$$$2D8$$%&&&$%%&&$$$2?8$$%%&&$&$$$2A8$%&&&$&$$$$248$%&&&$%&&& $9JG$=B$/+*<$?,+6646$1B$+$K51L5+/$A4K4*A$1*$4+?C$10C45P$0C4*$?1>K,)*L$D40E44*$?,+6646$)6 2+8 )*6)L*)B)?+*0$$$$2D8$,1E$$$$$2?8$54A>*A+*0$$$$$2A8$?1C46)R4$$$$$248$C)LC %9