JTextArea设置不可编辑，并显示I型光标

JTextArea设置不可编辑，并显示I型光标

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.event.*;

public class Test extends JFrame {

JTextArea text;

public Test() {

super( "JTextArea ");

this.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent windowEvent) {

System.exit(0);

}

});

text = new JTextArea();

text.setText( "我们都有一个家，名字叫中国，兄弟姐妹都很多...... ");

text.setEditable(false);

text.addMouseListener(new MouseAdapter() {

public void mouseEntered(MouseEvent mouseEvent) {

text.setCursor(new Cursor(Cursor.TEXT_CURSOR)); //鼠标进入Text区后变为文本输入指针

}

public void mouseExited(MouseEvent mouseEvent) {

text.setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); //鼠标离开Text区后恢复默认形态

}

});

text.getCaret().addChangeListener(new ChangeListener() {

public void stateChanged(ChangeEvent e) {

text.getCaret().setVisible(true); //使Text区的文本光标显示

}

});

this.getContentPane().add(text);

this.setSize(300, 200);

this.setVisible(true);

}

public static void main(String[] args) {

new Test();

}

}