fordemo.java

来自「java经典的源代码 我非常喜欢这个源代码 对于编程很有好处」· Java 代码 · 共 18 行

//forDemo.Java
import javax.swing.JOptionPane;
  public class forDemo {    
     // main method begins execution of Java application
      public static void main( String args[] )
      {
         int sum = 0;
         // sum even integers from 2 through 100
         for ( int number = 2; number <= 100; number += 2 )
            sum += number;
         // display results
         JOptionPane.showMessageDialog( null, "The sum is " + sum,
            "Sum Even Integers from 2 to 100",
            JOptionPane.INFORMATION_MESSAGE );
         System.exit( 0 );   // terminate the application
   }  // end method main
}