applet1.java

jbuilder 100例 java源码学习,非常不错,有需要朋友下来

package both;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class Applet1 extends Applet {
  boolean isStandalone = false;
  String name;
  Font font = new Font("TimesRoman",Font.BOLD,40);
  /**Get a parameter value*/
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
      (getParameter(key) != null ? getParameter(key) : def);
  }

  /**Construct the applet*/
  public Applet1() {
  }
  /**Initialize the applet*/
  public void init() {
    try {
      name = this.getParameter("name", "");
      if(name == null)  name = "Robert";
      name = "Hello" + name + "!";
    }
    catch(Exception e) {
      e.printStackTrace();
    }
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception {
  }
  /**Get Applet information*/
  public String getAppletInfo() {
    return "Applet Information";
  }
  /**Get parameter info*/
  public String[][] getParameterInfo() {
    String[][] pinfo =
      {
      {"name", "String", ""},
      };
    return pinfo;
  }
  public void paint(Graphics g) {
    /**@todo: Override this java.awt.Component method*/
    g.setFont(font);
    g.setColor(Color.blue);
    g.drawString(name,5,50);
  }
  public static void main(String args[]){
    System.out.print("Hello");
    if(args.length == 0){
      System.out.print(" Robert");
    }
    else{
      for (int i = 0;i<args.length;i++){
      System.out.print(" "+args[i]);
      }
    }
    System.out.println("!");
  }
}