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Week 10 HomeworkProblem 1Write a main method class that prompts the user to enter a stringvalue. Complete as indicated below in each section.

Part 1 (3 points)Using a while loop, prompt the user 10 times to enter a string value.Store the values entered in an array. After the values have beenentered and stored, write a second while loop to read through thevalues, displaying them to the console in the order which they wereentered. Write a third while loop to read through the values,displaying them to the console in reverse order.

importjava.util.Arrays;importjava.util.Collections;importjava.util.Scanner;

publicclassWeek10Prob1 {

publicstaticvoidmain(String[ args! {

String myArr[ " newString[10;intmy#ries" 10;intmy$n%ut" 0;Scanner myScan" newScanner(System.in!;String scan$n%ut;

while(my$n%ut& my#ries!{

System.out.%rintln('nter a single )or*+ '!;scan$n%ut" myScan.ne,t-ine(!;myArr[my$n%ut " scan$n%ut;my$n%ut;

/

System.out.%rintln(' '!;

while(my#ries"" 10!{System.out.%rintln('ere are your )or*s in or*er+'!;Arrays.sort(myArr!;for(String str+ myArr!{

System.out.%rintln(str!;

/break;

/

System.out.%rintln(' '!;

while(my#ries"" 10!{System.out.%rintln('ere are your )or*s in reverse or*er+'!;Arrays.sort(myArr Collections.reverseOrder(!!;

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for(String str+ myArr!{System.out.%rintln(str!;

/break;

/

/

/

Week 10 Homework 2

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Part 2 (3 points)ewrite your code from !art 1, replacing each of the while loops witha for loop and replacing the array with an array list.

importjava.util.Array-ist;importjava.util.Arrays;importjava.util.Collections;importjava.util.Scanner;

publicclassWeek10Prob1 {

publicstaticvoidmain(String[ args! {

Array-ist&String2 myArr" newArray-ist&String2(!;Scanner myScan" newScanner(System.in!;

for(inti" 0; i& 10; i! {

System.out.%rintln('nter a single )or*+ '!; String inPut" myScan.ne,t-ine(!; myArr.a**(inPut!; /

System.out.%rintln('ere are your )or*s in or*er+'!;

for(inti" 0; i& myArr.si3e(!; i!{ Collections.sort(myArr!; System.out.%rintln(myArr.get(i!!; /

System.out.%rintln(' '!;

System.out.%rintln('ere are your )or*s in reverse+'!;for(inti" 0; i& myArr.si3e(!; i!{

Collections.sort(myArr Collections.reverseOrder(!!;System.out.%rintln(myArr.get(i!!;

/

/

/

Week 10 Homework 3

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Part 3 (1 point)ewrite your code from !art " above, replacing the last two for loops# the loops used to display the values of the array list, with anenhanced for loop.

importjava.util.Array-ist;importjava.util.Arrays;importjava.util.Collections;importjava.util.Scanner;

publicclassWeek10Prob1 {

publicstaticvoidmain(String[ args! {

Array-ist&String2 myArr" newArray-ist&String2(!;

Scanner myScan" newScanner(System.in!;

for(inti" 0; i& 10; i! { System.out.%rintln('nter a single )or*+ '!; String inPut" myScan.ne,t-ine(!; myArr.a**(inPut!; /

System.out.%rintln('ere are t4e )or*s in t4e array+'!;

for(String my5orArr+ myArr!{ System.out.%rintln(my5orArr!; /

/

/

Week 10 Homework 4

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Problem 4 Battleship

BattleShip is a game where ships are hidden in an ocean andare then searched or !sing coordinates" #n o!r game$ theocean will be represented b% a matri& o data t%pe char" '

hidden ship is represented b% the char al!e *+" ' o!nd shipis represented b% the char al!e B+" 'n !nsearched coordinatein the ocean is represented b% the char al!e "+" ' searchedcoordinate in the ocean is represented b% the char al!e ,+"-he matri& co!ld be an% si.e$ 2&2$ 3&3$ 10&10$ 20&20$ etc"

'n e&ample wo!ld be/ ( - code or the e&ample$ !st !seas reerence)

0 1 20 " " *

1 B , *2 * , *

The . in position 0,0 indicates that this position does not

contain a ship and it has not yet been search.

The B in position 1,0 indicates that it has been search and

it contains a ship.

The X in position 2,0 indicates that it has not been search

and it contains a ship.

The ~ in position 1,1 indicates that it has been searched

and it does not contain a ship.

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Part 1 -est ase (2 points)

Write test cases for the following constructor and method

Battle!hip"char#$#$ in%cean&

This constructor creates a Battle!hip ob'ect. (t acceptsone e)picit constructor, a matri) consisting of charob'ects. *ou will need to build an ob'ect and pass it to theconstructor and then test to ma+e sure the ob'ect hasbeen successfully created "not null&.

boolean isit"int row, int col&This method returns true if a ship is found at the speci-edcoordinate. (f a ship is found, the X at the position ischanged from an X to a B. (t returns false if a ship is notfound at the speci-ed coordinate. (f a ship is not found,

the . at the position is changed from . to ~.

( (/T T(3 4%5 T(!. ( 67T !%3T(/8T%8T5 599* :7(;

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assertEquals(false my8attle.isit(00!!;/

/

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Part 2 BattleShip lass (3 points)

Write the Battle!hip ;lass with the following methods

(nstance =ariable > matri) of data type char, do not specify a

si?e. This will be determined by the matri) passed to theconstructor.

Battle!hip"char#$#$ in%cean&This constructor creates a Battle!hip ob'ect. (t acceptsone e)picit constructor, a matri) consisting of charob'ects. !et the matri) instance =ariable to the passed ine)plicit parameter.

boolean isit"int row, int col&

This method returns true if a ship is found at the

speci-ed coordinate. (f a ship is found, the X at theposition is changed from an X to a B.

(t returns false if a ship is not found at the speci-ed

coordinate. (f a ship is not found, the . at the positionis changed from . to ~.

!tring to!tring"&

Build a string containing the matri).

The -rst row should contain the column labels of each

column. !+ip the -rst column as this will contain the

row labels. The -rst column should contain the row labels of each

row.

(f a position in the matri) contains a X, display . to

show it has not yet been searched.

(f all of the ships ha=e been found "no X@s in the

matri)&, display AW(//5 ll ships ha=e been found.

To ha=e eCual spacing when printing the matri) use ADt

to tab between elements and ADn at the end of eachrow to start a new row.

(f the matri) consists of

0 1 20 " " *1 B , *

2 * , *

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The string returned should contain

0 1 20 " " "1 B , "

2 " , "

publicclass8attleS4i% {

esult; if( (ro)2 this.ocean.lengt4! ?? (col2 this.ocean[ro).lengt4!! { returnfalse;

/ if( ocean[ro)[col "" @@! { this.ocean[ro)[col " @8@;

my>esult" true; / elseif(ocean[ro)[col "" @.@! { this.ocean[ro)[col " @B@; my>esult" false; / else{ my>esult" false; / returnmy>esult;

/

publicString toString(! {

intnumber=7" 0; String boar*=ut" ' ';

for( inti" 0; i& this.ocean[0.lengt4; i! {

boar*=ut" boar*=ut 't' i; /

boar*=ut" boar*=ut 'n';

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for( inti" 0; i& this.ocean[0.lengt4; i! { boar*=ut" boar*=ut i; for( intj" 0;j& this.ocean[i.lengt4;j! { if( this.ocean[i[j "" @@! { boar*=ut" boar*=ut 't.'; number=7;

/ else{ boar*=ut" boar*=ut 't' this.ocean[i[j; / / boar*=ut" boar*=ut 'n'; /

if(number=7"" 0! {

boar*=ut" boar*=ut 'All s4i%s 4ave been 7oun* D AWS=E.'; / returnboar*=ut; /

/

Part 3 BattleShiprier lass (3 points)

Write the Battle!hipri=er ;lass to do the following

Build a char matri) of any si?e

o 6opulate the matri) with E.@ and EX@ where E.@

indicates an empty position and EX@ indicates ahidden ship.

7se the Battle!hip class written in 6art 2

;onstruct a Battleship ob'ect, passing your matri) as the

e)plicit parameter

isplay the Battle!hip ob'ect matri)

(n a loop

o ;ontinue looping until sentinel =alue is entered

o 6rompt the user to enter a row coordinate

o 6rompt the user to enter a column

o ;hec+ to see if the entered coordinates are a hit

(f they are a hit display (T

(f they are not a hit display 3(!!o isplay the matri)

importjava.util.Scanner;

publicclass8attleS4i%Friver {

publicstaticvoidmain(String[ args!throwsjava.lang.,ce%tion {

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Scanner myScan" newScanner(System.in!;

intmy>S4ot;

intmyCS4ot;

8attleS4i% my8attle" new8attleS4i%(!;

System.out.%rintln('-et@s %lay some 8attleS4i%G'!;

System.out.%rintln(' '!;

System.out.%rintln('@.@ stan*s 7or unsearc4e* )ater.'!;

System.out.%rintln('@B@ stan*s 7or searc4e* )ater.'!;

System.out.%rintln('@8@ means you 4it a s4i%G'!;

System.out.%rintln(' '!;

System.out.%rintln(' '!;

System.out.%rintln('AKAJA$I.'!;

System.out.%rintln(' '!;

/

System.out.%rintln(my8attle.toString(!!;

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if(my8attle.toString(!.contains('All'!!{

startJame" false;

/

/

/

/

Week 10 Homework 12