视频链接：20、文本框、密码框、文本域_哔哩哔哩_bilibilihttps://www.bilibili.com/video/BV1DJ411B75F?p=20&vd_source=b5775c3a4ea16a5306db9c7c1c1486b5

1.文本框

示例代码：

java">package com.yundait.lesson06;import javax.swing.*;
import java.awt.*;public class TextFieldDemo extends JFrame {public TextFieldDemo(){Container container = this.getContentPane();//创建文本框JTextField jTextField = new JTextField("Hello");JTextField jTextField1 = new JTextField("World");//将文本框添加到容器中container.add(jTextField,BorderLayout.NORTH);container.add(jTextField1,BorderLayout.CENTER);//设置可见、窗口尺寸、关闭事件this.setVisible(true);this.setSize(600,700);this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);}public static void main(String[] args) {new TextFieldDemo();}
}

运行结果：

2.密码框

示例代码

java">package com.yundait.lesson06;import com.yundait.lesson05.JButtonDemo01;import javax.swing.*;
import java.awt.*;
import java.net.URL;public class PasswordFieldDemo extends JFrame {public PasswordFieldDemo(){Container container = this.getContentPane();//创建密码框JPasswordField jPasswordField = new JPasswordField();jPasswordField.setEchoChar('*');//将密码框添加到容器中container.add(jPasswordField);this.setVisible(true);this.setSize(600,700);this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);}public static void main(String[] args) {new PasswordFieldDemo();}
}

运行结果

3.文本域

示例代码

java">package com.yundait.lesson05;import javax.swing.*;
import java.awt.*;public class JScrollDemo extends JFrame {public JScrollDemo(){//创建一个容器，Container container = this.getContentPane();//创建文本域JTextArea jTextArea = new JTextArea(200,500);jTextArea.setText("欢迎来到山东");//创建滚动窗格，并将文本域添加上JScrollPane jScrollPane = new JScrollPane(jTextArea);//在容器中添加滚动窗格container.add(jScrollPane);//设置窗口可见、尺寸、关闭事件this.setVisible(true);this.setBounds(100,100,450,500);this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);}public static void main(String[] args) {new JScrollDemo();}
}

运行结果