/**

 * LoopExamples

 *

 * @author T K Rogers

 * @version 01-04-06

 */

public class LoopExamples {

    public static void main( ) {

        double output = 0;

        int x;

        double array [ ] = { 20.0, 2.0, 3.0 };

       

    // The output for each of the following loops is the same   

       //for loop example

        for ( x = 0; x < 3; x++) { // initializes; tests; increments

            output += array [x];

            System.out.print ( array [x] + ", " );

        }

        System.out.println ("____for loop: output = " + output + "\n");

        output = 0;

       

        //while loop example

        x = 0;                          // initializes

        while ( x < 3 ) {            // tests

            output += array [x];

            System.out.print ( array [x] + ", " );

            x++;                        // increments

        }

        System.out.println ( "____while loop: output = " + output + "\n" );

        output = 0;

       

        // do...while loop example

        x = 0;                          // initializes

        do {

            output += array [x];

            System.out.print ( array [x] + ", " );

            x++;                        // increments

        }  while (x < 3);            // tests

        System.out.println ( "____do...while loop: output = " + output + "\n" );

        output = 0;

       

        // foreach loop example

        for ( double i: array ) {  // Automatically initializes, increments by 1, and

                                                                  // runs until reaching the end of the list

            output += i;  // The variable i now takes the place of each value in a list

                                             // starting with the first and progressing to the last one in

                          // sequential order

            System.out.print ( i + ", " );

        }

        System.out.println ( "____foreach loop: output = " + output + "\n" );

        output = 0;

    }

 

}