application1.java~3~

来自「提供了常用的JAVA技术的示例」· JAVA~3~ 代码 · 共 35 行

package addnum;

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 addnum {
  static final int max_num=100;
  //Main method
  public static void main(String[] args) {
    int n=max_num;
    int sum=0;
    while (n>0){
      sum+=n;
      n--;
      }
  System.out.println("1+2+3+...+100="+sum);

    try {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    }
    catch(Exception e) {
      e.printStackTrace();
    }
    new addnum();
  }
}