JPanel面板

3.4 面板

JPanel

package com.zishi.lesson05;
​
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));//GridLayout（行，列，上下间距）
​
        JPanel panel1 = new JPanel(new GridLayout(1,3));
        JPanel panel2 = new JPanel(new GridLayout(1,2));
        JPanel panel3 = new JPanel(new GridLayout(3,1));
        JPanel panel4 = new JPanel(new GridLayout(2,2));
​
        panel1.add(new JButton("1"));
        panel1.add(new JButton("1"));
        panel1.add(new JButton("1"));
        panel2.add(new JButton("2"));
        panel2.add(new JButton("2"));
        panel3.add(new JButton("3"));
        panel3.add(new JButton("3"));
        panel3.add(new JButton("3"));
        panel4.add(new JButton("4"));
        panel4.add(new JButton("4"));
        panel4.add(new JButton("4"));
        panel4.add(new JButton("4"));
​
        container.add(panel1);
        container.add(panel2);
        container.add(panel3);
        container.add(panel4);
​
        this.setSize(500,500);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        this.setVisible(true);
    }
​
    public static void main(String[] args) {
        new JPanelDemo();
    }
}

JScroll Panel滚动面板

package com.zishi.lesson05;
​
import javax.swing.*;
import java.awt.*;
​
public class JScrollDemo extends JFrame {
​
    public JScrollDemo(){
        Container container = this.getContentPane();
​
        //文本域
        JTextArea textArea = new JTextArea(20,50);
        textArea.setText("和一只肥一起学Java");
​
        //JScroll面板
        JScrollPane scrollPane = new JScrollPane(textArea);
​
        container.add(scrollPane);
​
        this.setBounds(100,100,200,200);
        this.setVisible(true);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
​
    }
​
    public static void main(String[] args) {
        new JScrollDemo();
    }
}

标签：container,add,JPanel,GridLayout,new,面板,JButton
来源： https://www.cnblogs.com/yizhifei/p/15173606.html