Conditional control statement type two in java

Looping statements:

• It is used to execute continually until the condition becomes false.

Types:

• While
• Do while
• For

1. While:

• It first checks the condition then executes the result until becomes false.

Syntax:

 while (condition)

{

          Statements;

}

Example program for while condition:

package exampleprogram;

public class Looping_program {

    public static void main(String[] args) {

        int i = 1, sum = 0;

        while (i <= 5) {

            sum = sum + i;

            i++;

        }

        System.out.println("\n The sum of numbers upto 5 is : " + sum);

    }

}

Output:

2. do while:

• It is first to perform some operation after that check the conditions.
• It's opposite to the while condition.

Syntax:

do

{

          Statements;

}

while (condition);

Example program for do while condition:

package exampleprogram;

public class Looping_program {

    public static void main(String[] args) {

        int i = 1, sum = 0;

        do {

            sum = sum + i;

            i++;

        } while (i <= 5);

        System.out.println("\n The sum of numbers upto 5 is : " + sum);

    }

}

Output:

3. for loop:

• It is used to execute a set of instructions repeatedly until the condition becomes false.

Syntax:

 for(initialization ;condition ;increment or decrement)

{

          Statement;

}

Example program for for loop:

package exampleprogram;

public class Looping_program {

    public static void main(String[] args) {

        int i;

        for (i = 1; i <= 10; i++) {

            System.out.println(i);

        }

    }

}

Output:

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