Basic Methods of JAVA (2)

While Loop

As long as condition is true, statement is repeatedly executed

 

Example

while ( i<=100 )

    { sum += i;  i++;  }

   - sum of integer number from 1 to 100

 

Switch Block

   - Execution starts at the case label that matches the value on which the selection is performed and continues until the next break or the end of the switch

   - If none of the case labels matches, then the default clause is executed, if it is present

 

Example

switch (n % 5)

    { case 0: System.out.println(“remainder 0");

      case 1: System.out.println(“remainder 1");

      case 2: System.out.println(“remainder 2");

      default : System.out.println(“remainder 3 or 4"); }

 

Continue

   - The continue statement transfers control to the header of the innermost enclosing loop

   - The continue statement jumps immediately to the loop header, skipping the remainder of the current iteration

 

Example

if (n < 0) 

    { System.out.println(“n is negative number!");

       continue; }