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Java Loop control Homework Help

Java Loop control:

If you want to execute particular part of code means use looping concept. In java we have three ways to running loop.

1. while loop

2. for loop

3. do … while loop

java loop control

While loop:

It repeats the statement until the conditions get false.

Syntax:

while (condition)

{
code block to be executed
}

Example:

{`int a = 0;
while (a < 3)  {
 System.out.println(a);
 a++;
 }
`}

Output:

012

For loop:

It executes the set of statement multiple times until condition get false.

Syntax:

for ( initialization; condition; increment/decrement)

{Body of statement }

Example:

{`for (int i = 0; i <3; i++)
{
 System.out.println(i);
 }
`}

Output:

012

do .. while loop:

It not like that while loop. In this once the statement executes and then the condition will be checked.

Syntax:

do

{

Statement

}while(condition);

Example:

{`Int i=0;
do
{
System.out.println(i);
i++;
}while(i<3);
`}

Output:

012

Loop control statements:

It is used to change execution from normal process. Java supports two control statements.

i) break – when it is found the loop immediately terminate. It is used in switch case statements.

Syntax:

break;

Example:

{`public class sample  {
 public static void main(String args[])
 }
 int [] nums =  {05, 10, 20, 25, 30 };
 for(int i : nums )
 {
 if( i == 20 )
 {
break;
}
 System.out.print( i );
 System.out.print("\n");
 }
 }
}
`}

Output:

05

10

ii) continue –

it is used for skip the few of statements when reach the particular condition.

Syntax:

continue:

Example:

{`public class sample  {
int [] nums =  {05, 10, 20, 25, 30 };
 for(int i : nums )
 {
 if( i == 20 )
 {
continue;
}
 System.out.print( i );
 System.out.print("\n");
 }
 }
 }
`}

Output:

5

10

25

30

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