while,do-while,for loop statments

Control statements: - Control statements are the statements.This statement are change the flow of execution.

1)      if-else statement

2)      switch statement

3)      break statement

4)      continue statement

5)      return statement

6)      while loop

7)      d0-while loop

8)      for loop

while loop: -This loop is useful to repeatedly execute a group of statements as long as a given condition is true.It first checks condition and then excute statement.

Syntax: -            while(condition)

             {

                                     Statements;

                      }

Example Program:-

public class While_Loop {

    public static void main(String a[]){

        int i=10;

        while(i<=20){

            System.out.println("numbers between 10 to 20 :"+i);

            i++;

        }

    }

}

do-while loop: - This loop repeatedly execute a group of statements as long as a condition is true.It first excutes statement  and then checks condition.

Syntax: -               do{

                                   Statements;

                     }

while (condition);

Example Program:-

public class Do_While {

    public static void main(String a[]){

        int i=10;

        do{

            System.out.println("numbers between 10 to 20 :"+i);

            i++;

        }while(i<=20);

    }

}

for loop: -

                This is used to repeatedly execute a group of statements as long as a condition is true.

Syntax: -

                for(init;cond;modi)

{

                Statements;

}

Init  is called initializing expression.

Cond  is called conditional expression.

Modi  is called modifying expression.

Example Program:-

public class For_Loop {

    public static void main(String a[]){

        int i;

        for(i=1;i<=10;i++){

            System.out.println(+i);

        }

    }

   

}