WordShow-java-swing_wordshow java-优快云博客

本文链接：https://blog.youkuaiyun.com/wisdomchenmsdn/article/details/4221978

这是一个简单的Java程序，用于展示数组中的单词。程序通过两个按钮实现单词的前后翻动，并使用Label显示当前单词。此应用展示了基本的GUI设计及事件监听器的使用。

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package Works_JavaLesson;
import java.awt.*;
import java.awt.event.*;

public class WordShow {

/**
* @param 向一个数组中存入若干单词，
* 创建一个label和两个button，
* 通过按动按钮实现单词的前后翻动
*
* @author ChenJian
*/
public static void main(String[] args) {
  WordShowFrame frame = new WordShowFrame();
  frame.setSize(300, 200);
  frame.setVisible(true);
  frame.setLocation(500, 400);
  frame.addWindowListener(
   new WindowAdapter(){
    public void windowClosing(WindowEvent e){
     System.exit(0);
    }
   }
  );
}
}

class WordShowFrame extends Frame{
public WordShowFrame(){
  index = 0;
  words = new String[]{
   "Nice", "Date", "Java", "Good", "Time", "Idioms",
   "wear", "cucumber", "thorn", "sleeve", "Irregular", "ASAP"
  };
  label = new Label(words[index], Label.CENTER);
  Button btn1 = new Button("Pre");
  Button btn2 = new Button("Next");
  btn1.addActionListener(
   new ActionListener(){
    public void actionPerformed(ActionEvent event){
     if(index <= 0){
      index = words.length-1;
     }
     else{
      index--;
     }
     label.setText(words[index]);
    }
   }
  );
  btn2.addActionListener(
    new ActionListener(){
     public void actionPerformed(ActionEvent event){
      if(index >= words.length-1){
       index = 0;
      }
      else{
       index++;
      }
      label.setText(words[index]);
     }
    });

  setLayout(new BorderLayout());
  add(label, BorderLayout.CENTER);
  add(btn1, BorderLayout.WEST);
  add(btn2, BorderLayout.EAST);
}
private int index;
private final String[] words;
private final Label label;
}

2009-05-28 09:49:14