/*
 *  =============================================================
 *  DemoBranching.java: Demo features of branching constructs....
 *
 *  Written By: Mark Austin                           August 2004
 *  =============================================================
 */

public class DemoBranching {

   // Constructor method.

   public DemoBranching() {};

   // main method : this is where the program execution begins.

   public static void main ( String [] args ) {
       int i = 0, j = 0, k = 3;

       // [a] Create a simple branching construct

       System.out.println("Demo 1: Simple branching construct");
       System.out.println("==============================================");

       System.out.println("Part 1: i = " + i);
       if (i == 0) {
           System.out.println("In block 1!");
       } else {
           System.out.println("In block 2!");
       }

       System.out.println(" (i == 0) evaluates to " + (i==0) );

       i = 3;
       System.out.println("\nPart 2: i = " + i);
       if (i == 0) {
           System.out.println("In block 1!");
       } else {
           System.out.println("In block 2!");
       }

       System.out.println(" (i == 0) evaluates to " + (i==0) );
       System.out.println("==============================================");

       // [b] Branching construct with more complicated conditional
       //     expression....

       System.out.println("\nDemo 2: Branching construct with multiple args");
       System.out.println("==============================================");

       i = 0; j = 1; k = 3;
       System.out.println("Part 1: i = " + i + " j = " + j + " k = " + k);
       if (i == 0 && j <= 1 && (k == 3 || k == 4) ) {
           System.out.println("In block 1!");
       } else {
           System.out.println("In block 2!");
       }

       System.out.println(" (i == 0) evaluates to " + (i==0) );
       System.out.println(" (j <= 4) evaluates to " + (j<=4) );
       System.out.println(" (k == 3 || k == 4) evaluates to " +
                            (k == 3 || k == 4));

       i = 3; k = 5;
       System.out.println("\nPart 2: i = " + i + " j = " + j + " k = " + k);
       if (i == 0 && j <= 1 && (k == 3 || k == 4) ) {
           System.out.println("In block 1!");
       } else {
           System.out.println("In block 2!");
       }

       System.out.println(" (i == 0) evaluates to " + (i==0) );
       System.out.println(" (j <= 4) evaluates to " + (j<=4) );
       System.out.println(" (k == 3 || k == 4) evaluates to " +
                            (k == 3 || k == 4));
       System.out.println("==============================================");
   }
}