Loops in Java 

Following are three important statements to loop a set of statements in Java. 

1) For
2) While
3) Do.. While



For Statement


  Syntax   -->   for(initialization; conditon ; increment)  {
                 statements;
                 }


      



  Output         i value is 1
                     i value is 2                 
                     End of the for loop.
                                 


  EXPALANATION 

    First Iteration

    When for loop started executing, it set the variable i to 1 and check the 
    condition i < 3  ( in this case it is 1 < 3 , which is true).

    Since the condition become true. statements inside the for loop will get executed
    and println will display string "i value is 1".

  
    Second Iternation
    
    Control again comes to for statement and i value get incremented by i++ statement by 1 ( 1 to 2)
    and check the condition i < 3 ( in this case i vlaue is 2)  2 < 3 which is true.

    Since the condition becomes true, statements inside the for loop will get executed 
    and  println will display string "i value is 2".


    Third Iternation

    Control again goes to for statement and i value get incremented by i++ statement by 1 (2 to 3)
    and check the condition i < 3  (in this iteration i vlaud is 3) 3 < 3 which is false.

    Since the condition is false, control will move to next statement followed by for loop
    and  "End of the for loop" string will get displayed.