java代码实例第30课

test030.java

import java.awt.Container;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.WindowConstants;

public class test030 extends JFrame
{

  public static void main(String[] args)
  {
    new test030();

  }

  public test030()
  {
    Container container1 = this.getContentPane();
    JTextArea textArea1 = new JTextArea(50,100);
    JScrollPane scrollPane1 = new JScrollPane(textArea1);
    container1.add(scrollPane1);
    this.setTitle("带滚动条的文字编辑器");
    this.setSize(500,500);
    this.setVisible(true);
    this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
  }
}