GUI05标签

JPanel面板

package lesson03;

import lesson02.JFrameDemo;

import javax.swing.*;
import java.awt.*;

public class JPanelDemo extends JFrame {


    public JPanelDemo() {
        Container container = this.getContentPane();
        container.setLayout(new GridLayout(2, 1, 10, 10));//2行2列10间距

        JPanel panel = new JPanel(new GridLayout(1, 3));
        panel.add(new Button("1"));
        panel.add(new Button("1"));
        panel.add(new Button("1"));

        container.add(panel);

        this.setVisible(true);
        this.setSize(500, 500);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }

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

    }

}

JScrollPanel文本域

package lesson03;

import javax.swing.*;
import java.awt.*;

public class JScrollDemo extends JFrame {
    public static void main(String[] args) {
        new JScrollDemo();
    }

    public JScrollDemo(){
        Container container=this.getContentPane();
        //文本域
        JTextArea textArea=new JTextArea();
        textArea.setText("文本域的学习");
        //Scroll面板
        JScrollPane scrollPane=new JScrollPane(textArea);
        container.add(scrollPane);

        container.add(scrollPane);
        this.setVisible(true);
        this.setBounds(100,100,300,300);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }
}

按钮

package lesson03;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class JButtonDemo01 extends JFrame {
		//普通按钮
    public JButtonDemo01() {
        Container container = this.getContentPane();
        //将一个图片变为图标
        URL resource = JButtonDemo01.class.getResource("snow.jpg");
        Icon icon = new ImageIcon(resource);
        //图片大小是否可以设置呢？
        //把这个图标放在按钮上
        JButton button = new JButton();
        button.setIcon(icon);
        button.setToolTipText("图片按钮");
        //add
        container.add(button);
        this.setVisible(true);
        this.setSize(50,30);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
    public static void main(String[] args) {
        new JButtonDemo01();

    }
}

JButton单选框

package lesson03;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

public class JButtonDemo02 extends JFrame {

    public JButtonDemo02() {
        Container container = this.getContentPane();
        //将一个图片变为图标
//        URL resource = JButtonDemo01.class.getResource("snow.jpg");
//        Icon icon = new ImageIcon(resource);
        //图片大小是否可以设置呢？
        //单选框
        JRadioButton radioButton1= new JRadioButton("01");
        JRadioButton radioButton2 = new JRadioButton("02");
        JRadioButton radioButton3= new JRadioButton("03");
        //分组一个组中只能选择一个
        ButtonGroup group=new ButtonGroup();
        group.add(radioButton1);
        group.add(radioButton2);
        group.add(radioButton3);

        //add
        container.add(radioButton1,BorderLayout.CENTER);
        container.add(radioButton2,BorderLayout.NORTH);
        container.add(radioButton3,BorderLayout.SOUTH);
        this.setVisible(true);
        this.setSize(50,30);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
    public static void main(String[] args) {
        new JButtonDemo02();

    }
}

JButton复选框

package lesson03;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

public class JButtonDemo03 extends JFrame {

    public JButtonDemo03() {
        Container container = this.getContentPane();
        //将一个图片变为图标
//        URL resource = JButtonDemo01.class.getResource("snow.jpg");
//        Icon icon = new ImageIcon(resource);
        //图片大小是否可以设置呢？
        //复选框
        JCheckBox checkBox1 = new JCheckBox();
        JCheckBox checkBox2= new JCheckBox();
        JCheckBox checkBox3= new JCheckBox();
        //add
        container.add(checkBox1,BorderLayout.NORTH);
        container.add(checkBox2,BorderLayout.CENTER);
        container.add(checkBox3,BorderLayout.SOUTH);


        this.setVisible(true);
        this.setSize(50,30);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
    public static void main(String[] args) {
        new JButtonDemo03();

    }
}

JComboBox下拉框

package lesson03;

import javax.swing.*;
import java.awt.*;

public class TestComboxDemo01 extends JFrame {
    public TestComboxDemo01() {
        //下拉框
        Container container=this.getContentPane();
        JComboBox status = new JComboBox();
        status.addItem(null);
        status.addItem("start");
        status.addItem("stop");
        status.addItem("restart");
        container.add(status);

        this.setVisible(true);
        this.setSize(500,200);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestComboxDemo01();

    }
}

列表框JList

package lesson03;

import javax.swing.*;
import java.awt.*;
import java.util.Vector;

public class TestComboxDemo02 extends JFrame {
    public TestComboxDemo02() {
        //列表框
        Container container=this.getContentPane();
        //生成列表内容 稀疏数组压缩静态写死
        String[]  contents={"1","2","3"};
        //动态
        Vector vector = new Vector();
        //JList jList = new JList(contents);
        JList jList = new JList(vector);

        vector.add("one");
        vector.add("two");
        vector.add("three");
        container.add(jList); 
        this.setVisible(true);
        this.setSize(500,200);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestComboxDemo02();

    }
}

• 应用场景
  • 选择地区，单个选项
  • 列表展示信息，动态扩容

文本框

package lesson03;

import javax.swing.*;
import java.awt.*;
import java.util.Vector;

public class TestTextDemo01 extends JFrame {
    public TestTextDemo01() {
        Container container=this.getContentPane();
        //文本框
        JTextField textField1 = new JTextField("hello");
        JTextField textField2 = new JTextField("world",20);
        container.add(textField1,BorderLayout.SOUTH);
        container.add(textField2,BorderLayout.CENTER);

        this.setVisible(true);
        this.setSize(500,200);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestTextDemo01();

    }
}

密码框

package lesson03;

import javax.swing.*;
import java.awt.*;
import java.util.Vector;

public class TestTextDemo02 extends JFrame {
    public TestTextDemo02() {
        Container container=this.getContentPane();
        //密码框
        JPasswordField jPasswordField = new JPasswordField();
        jPasswordField.setEchoChar('*');
        container.add(jPasswordField);
        this.setVisible(true);
        this.setSize(500,200);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestTextDemo02();

    }
}

文本域

 JTextArea textArea = new JTextArea();
        textArea.setText("文本域");
				container.add(textArea);

本文地址：https://blog.csdn.net/zs_pnzzz/article/details/112254328