Simple For loop Example

/*
  Simple For loop Example
  This Java Example shows how to use for loop to iterate in Java program.
*/
 
public class SimpleForLoopExample {
 
  public static void main(String[] args) {
 
    /* Syntax of for loop is
     * 
     * for(<initialization> ; <condition> ; <expression> )
     *   <loop body>
     * 
     * where initialization usually declares a loop variable, condition is a 
     * boolean expression such that if the condition is true, loop body will be
     * executed and after each iteration of loop body, expression is executed which
     * usually increase or decrease loop variable.
     * 
     * Initialization is executed only once.
     */
 
     for(int index = 0; index < 5 ; index++)
       System.out.println("Index is : " + index);
 
     /*
      * Loop body may contains more than one statement. In that case they should 
      * be in the block.
      */
 
      for(int index=0; index < 5 ; index++)
      {
      System.out.println("Index is : " + index);
      index++;
      }
 
      /*
       * Please note that in above loop, index is a local variable whose scope
       * is limited to the loop. It can not be referenced from outside the loop.
       */
  }
}
 
/*
Output would be
Index is : 0
Index is : 1
Index is : 2
Index is : 3
Index is : 4
Index is : 0
Index is : 2
Index is : 4
*/