系列文章目录
文章目录
-
容器：JFrame
组件：
JPanel：面板
JButton：按钮
JLabel：标签
JTextArea：文本域
JTextField：文本框
JPasswordField：密码框
JCheckBox：复选框
JRadioButton：单选框(需要放入按钮组(ButtonGroup)使用)
ButtonGroup：把单选按钮放进一个组里
package demo01;
import java.awt.Container;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
public class DialogDemo01 extends JDialog{
public DialogDemo01(JFrame jframe) {
super(jframe,true);
this.setBounds(100,100,500,500);
Container container1= this.getContentPane();
container1.setLayout(null);
//container.add(new Label("大数据五班"));
JButton button1=new JButton("我是五班");
button1.setBounds(30,30,200,50);
container1.add(button1);
}
public static void main(String[] args) {
JFrame j=new JFrame();
j.setVisible(true);
j.setBounds(100,100,700,500);
j.setDefaultCloseOperation(EXIT_ON_CLOSE);
Container container= j.getContentPane();
container.setLayout(null);
JButton button=new JButton("我要登录");
button.setBounds(30,30,200,50);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
DialogDemo01 s=new DialogDemo01(j);
s.setVisible(true);
System.out.println("我被点击了");
}
});
}
}
- List item
package demo02;
import java.awt.Container;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
//面板作为容器不能单独存在，必须放到其他容器里面 JFrame.
public class JScrollDemo extends JFrame{
public JScrollDemo() {
Container container1= this.getContentPane();
//文本域
JTextArea textarea= new JTextArea(20,50);
textarea.setText("大数据五班");
//scroll面板
JScrollPane scrollpane=new JScrollPane(textarea);
container1.add(scrollpane);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
this.setBounds(100,100,500,500);
}
public static void main(String[] args) {
new JScrollDemo();
}
}
- List item
package demo03;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.WindowConstants;
public class TestBorderLayout2 {
public static void main(String[] args) {
JFrame j=new JFrame();
j.setVisible(true);
j.setBounds(100,100,700,500);
j.setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE);
JButton east=new JButton("east");
JButton west=new JButton("west");
JButton south=new JButton("south");
JButton north=new JButton("north");
JButton center=new JButton("center");
j.add(east,BorderLayout.EAST);
j.add(west,BorderLayout.WEST);
j.add(south,BorderLayout.SOUTH);
j.add(north,BorderLayout.NORTH);
j.add(center,BorderLayout.CENTER);
}
}
package demo03;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.WindowConstants;
public class TestFlowLayout {
public static void main(String[] args) {
JFrame j=new JFrame();
j.setVisible(true);
j.setBounds(100,100,700,500);
j.setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE);
//j.setLayout(new FlowLayout());不传参数，默认居中
//j.setLayout(new FlowLayout(FlowLayout.LEFT));
j.setLayout(new FlowLayout());
JButton button1=new JButton("button1");
JButton button2=new JButton("button2");
JButton button3=new JButton("button3");
JButton button4=new JButton("button4");
JButton button5=new JButton("button5");
JButton button6=new JButton("button6");
j.add(button1);
j.add(button2);
j.add(button3);
j.add(button4);
j.add(button5);
j.add(button6);
}
}
- List item
package demo04;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
//面板作为容器不能单独存在，必须放到其他容器里面 JFrame.
public class CheckBox extends JFrame{
public CheckBox() {
Container container1= this.getContentPane();
//单选框
JCheckBox checkbox1=new JCheckBox("checkbox1");
JCheckBox checkbox2=new JCheckBox("checkbox2");
JCheckBox checkbox3=new JCheckBox("checkbox3");
container1.add(checkbox1,BorderLayout.CENTER);
container1.add(checkbox2,BorderLayout.EAST);
container1.add(checkbox3,BorderLayout.SOUTH);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
this.setBounds(100,100,500,500);
}
public static void main(String[] args) {
new CheckBox();
}
}
package demo04;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
//面板作为容器不能单独存在，必须放到其他容器里面 JFrame.
public class RadioButon extends JFrame{
public RadioButon() {
Container container1= this.getContentPane();
//下拉框
JComboBox status= new JComboBox();
status.addItem(null);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
this.setBounds(100,100,500,500);
}
public static void main(String[] args) {
new RadioButon();
}
}
- List item
package demo05;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
//面板作为容器不能单独存在，必须放到其他容器里面 JFrame.
public class TextConBoxDemo01 extends JFrame{
public TextConBoxDemo01() {
Container container1= this.getContentPane();
//单选框
JRadioButton radiobutton1=new JRadioButton("JRdioButton1");
JRadioButton radiobutton2=new JRadioButton("JRdioButton2");
JRadioButton radiobutton3=new JRadioButton("JRdioButton3");
ButtonGroup group=new ButtonGroup();
group.add(radiobutton1);
group.add(radiobutton2);
group.add(radiobutton3);
container1.add(radiobutton1,BorderLayout.CENTER);
container1.add(radiobutton2,BorderLayout.NORTH);
container1.add(radiobutton3,BorderLayout.SOUTH);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
this.setBounds(100,100,500,500);
}
public static void main(String[] args) {
new TextConBoxDemo01();
}
}
package demo05;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.util.Vector;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
//面板作为容器不能单独存在，必须放到其他容器里面 JFrame.
public class TextConBoxDemo2 extends JFrame{
public TextConBoxDemo2() {
Container container1= this.getContentPane();
//下拉框
//String[] contents= {"1","五班","java"};
Vector<Object> contents=new Vector();
JList jlist=new JList(contents);
contents.add("五班");
contents.add("爱学习");
contents.add("打游戏");
contents.add("兼得");
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
this.setBounds(100,100,500,500);
}
public static void main(String[] args) {
new TextConBoxDemo2();
}
}