booleantest.java

还不错的java基本实例

import javax.swing.JOptionPane;
public class BooleanTest {
     public static void main( String args[] )
       {
                 boolean b;
                 int i ;
                 String str ;
                 b = 12 > 3 ;
                 str = "12 > 3的值为" + b + "\n";
                 b = 12 < 3 ;
                 str += "12 <3的值为" + b+ "\n";
                 b =12== 3;
                 str += "12 ==3的值为" + b+ "\n";
                 b = 12 !=3 ;
                 str += "12 !=3的值为"+b+"\n" ;
                 b = 12 >= 12 ;
                 str += "12 >=12的值为"+b + "\n";
                 b = 12 <= 12;
                 str += "12 <=12的值为"+ b+ "\n";
                 JOptionPane.showMessageDialog(null,str);
                  System.exit(0);
     }
}