arithmatic2.java

提供了常用的JAVA技术的示例

package arithmatic2;

import javax.swing.UIManager;
import java.awt.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class arithmatic2 {
  boolean packFrame = false;

  //Construct the application
  public arithmatic2() {
    Frame1 frame = new Frame1();
    //Validate frames that have preset sizes
    //Pack frames that have useful preferred size info, e.g. from their layout
    if (packFrame) {
      frame.pack();
    }
    else {
      frame.validate();
    }
    //Center the window
    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize = frame.getSize();
    if (frameSize.height > screenSize.height) {
      frameSize.height = screenSize.height;
    }
    if (frameSize.width > screenSize.width) {
      frameSize.width = screenSize.width;
    }
    frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
    frame.setVisible(true);
  }
  //Main method
  public static void main(String[] args) {
    int a=9;
    int b=18;
    int c=-34;
    double d=-100.89;
    int e=a+b--;
        b++;
    int f=a+(--b);
    double g=c+d/a;
    double h=(c-d)*a;
    System.out.println("a="+a);
    System.out.println("b="+b);
    System.out.println("c="+c);
    System.out.println("d="+d);
    System.out.println("e="+e);
    System.out.println("f="+f);
    System.out.println("g="+g);
    System.out.println("h="+h);

    new arithmatic2();
  }
}