[Java进阶] Swing两万字大总结一（超详细教程，这不得收藏一波）_swing 教程_程序喵正在路上的博客-CSDN博客
1.创建第一个JFrame窗体
package learn;
import javax.swing.*;
import java.awt.*;
public class MyFrame01 extends JFrame {
public void CreateJFrame(String title){
//实例化
JFrame frame = new JFrame(title);
//获取容器
Container container = frame.getContentPane();
container.setBackground(Color.CYAN);
JLabel jLabel = new JLabel("这是一个JFrame窗体");
//使标签上的文字居中
jLabel.setHorizontalAlignment(SwingConstants.CENTER);
//将标签添加到容器中
container.add(jLabel);
//窗体可视
frame.setVisible(true);
//设置窗体的位置以及大小
frame.setBounds(400,300,400,300);
//设置关闭方式
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new MyFrame01().CreateJFrame("第一个JFrame窗体");
}
}
2.JDialog窗体
package learn;
import javax.swing.*;
import java.awt.*;
/**
* MyFrame+MyDialog
*/
public class MyFrame02 extends JFrame {
public MyFrame02(){
//创建一个容器
Container container = getContentPane();
container.setLayout(null);
JLabel label = new JLabel("第二个JFrame窗体");
label.setHorizontalAlignment(SwingConstants.CENTER);
container.add(label);
JButton button = new JButton("点击出现对话框");
button.setBounds(10,10,150,20);
//按钮添加点击事件
button.addActionListener(e->{
new MyDialog(MyFrame02.this).setVisible(true);
});
container.add(button);
container.setBackground(Color.GRAY);
setSize(400,300);
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
setVisible(true);
}
public static void main(String[] args) {
new MyFrame02();
}
}
class MyDialog extends JDialog {
public MyDialog(MyFrame02 frame02){
//实例化JDialog类对象，指定父窗体、标题、类型
super(frame02, "JDialog窗体", true);
Container contentPane = getContentPane();
contentPane.add(new JLabel("第一个对话框"));
setBounds(120,120,150,100);
}
}
3.JLabel标签
package learn;
import javax.swing.*;
/**
* JLabel
*/
public class MyFrame03 extends JFrame {
JLabel label;
public MyFrame03(){
setTitle("添加标签");
label=new JLabel("第一个JLabel",JLabel.CENTER);
label.setIcon(new ImageIcon("D:\\javaidea\\work01\\other\\guicha7\\src\\learn\\imgs\\img1.png"));
label.setHorizontalTextPosition(JLabel.CENTER);
label.setVerticalTextPosition(JLabel.BOTTOM);
//设置标签不可用
label.setEnabled(false);
//当标签不可用的时候显示的图像
//注释这一行后显示的图像是不可用即是灰色的
// label.setDisabledIcon(new ImageIcon("D:\\javaidea\\work01\\other\\guicha7\\src\\learn\\imgs\\img2.png"));
add(label);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setBounds(400,300,800,650);
setVisible(true);
}
public static void main(String[] args) {
new MyFrame03();
}
}
4.普通按钮、单选按钮、复选框
package learn;
import javax.imageio.ImageIO;
import javax.swing.*;
import java.io.File;
import java.io.IOException;
/**
* JButton,JRadioButton,JCheckBox
*/
public class MyFrame04 extends JFrame {
JPanel root;
JButton msgBtn,imgBtn;
JRadioButton radioButton1,radioButton2,radioButton3,radioButton4;
JCheckBox checkBox1,checkBox2,checkBox3,checkBox4;
public MyFrame04() throws IOException {
//定义面板容器
root = new JPanel();
setContentPane(root);
//设置面板是绝对布局
setLayout(null);
//普通按钮以及添加图片的按钮
msgBtn = new JButton("普通按钮");
msgBtn.setBounds(54,68,100,40);
root.add(msgBtn);
ImageIcon icon = new ImageIcon(ImageIO.read(new File("D:\\javaidea\\work01\\other\\guicha7\\src\\learn\\imgs\\img1.png")));
imgBtn = new JButton(icon);
imgBtn.setBounds(196,40,120,120);
root.add(imgBtn);
//单选按钮
radioButton1 = new JRadioButton("学习");
radioButton2 = new JRadioButton("玩游戏");
radioButton3 = new JRadioButton("运动");
radioButton4 = new JRadioButton("听音乐");
radioButton1.setBounds(45,200,73,23);
radioButton2.setBounds(134,200,73,23);
radioButton3.setBounds(45,250,73,23);
radioButton4.setBounds(134,250,73,23);
root.add(radioButton1);
root.add(radioButton2);
root.add(radioButton3);
root.add(radioButton4);
//定义单选按钮组控件
ButtonGroup group = new ButtonGroup();
group.add(radioButton1);
group.add(radioButton2);
group.add(radioButton3);
group.add(radioButton4);
//复选框
checkBox1 = new JCheckBox("C");
checkBox2 = new JCheckBox("C++");
checkBox3 = new JCheckBox("Java");
checkBox4 = new JCheckBox("Python");
checkBox1.setBounds(45,300,73,23);
checkBox2.setBounds(134,300,73,23);
checkBox3.setBounds(45,350,73,23);
checkBox4.setBounds(134,350,73,23);
root.add(checkBox1);
root.add(checkBox2);
root.add(checkBox3);
root.add(checkBox4);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setBounds(400,300,400,450);
setVisible(true);
}
public static void main(String[] args) throws IOException {
new MyFrame04();
}
}
5.文本框、密码框
package learn;
import javax.swing.*;
/**
* JTextField、JPasswordField
*/
public class MyFrame05 extends JFrame {
JPanel root;
JLabel unameLabel,upwdLabel;
JTextField unameText;
JPasswordField upwd;
JButton loginBtn,exitBtn;
public MyFrame05(){
//定义面板容器
root =new JPanel();
setContentPane(root);
setLayout(null);//设置绝对布局
unameLabel = new JLabel("用户名: ");
unameLabel.setBounds(52,33,54,15);
root.add(unameLabel);
unameText = new JTextField(12);
unameText.setBounds(116,30,139,21);
root.add(unameText);
upwdLabel = new JLabel("密 码: ");
upwdLabel.setBounds(52,74,54,15);
root.add(upwdLabel);
//密码框
upwd = new JPasswordField(12);
upwd.setBounds(116,71,139,21);
//设置回显字符
upwd.setEchoChar('●');
root.add(upwd);
loginBtn = new JButton("登录");
loginBtn.setBounds(64,116,69,23);
root.add(loginBtn);
exitBtn = new JButton("退出");
exitBtn.setBounds(174,116,69,23);
root.add(exitBtn);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setBounds(400,300,340,256);
setVisible(true);
}
public static void main(String[] args) {
new MyFrame05();
}
}
6.JTextArea、JComboBox
package learn;
import javax.swing.*;
/**
* JTextArea、JComboBox
*/
public class MyFrame06 extends JFrame {
JPanel root;
JTextArea textArea;
JComboBox comboBox;
JLabel msgLabel;
public MyFrame06(String title){
//定义面板容器
super(title);
root = new JPanel();
setContentPane(root);
setLayout(null);
//TextArea
textArea = new JTextArea();
//设置文本域自动换行
textArea.setLineWrap(true);
textArea.setBounds(20,10,290,200);
root.add(textArea);
//ComboBox
msgLabel = new JLabel("请选择部门: ");
msgLabel.setBounds(31,220,130,15);
root.add(msgLabel);
String[] options={
"生产部","销售部","财务部","采购部","市场部","宣传部"
};
comboBox = new JComboBox(options);
comboBox.setBounds(130,220,100,21);
root.add(comboBox);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setBounds(400,300,400,400);
setVisible(true);
}
public static void main(String[] args) {
new MyFrame06("JTextArea & JComboBox");
}
}
标签：控件,setBounds,JFrame,--,add,new,JLabel,root,public From： https://www.cnblogs.com/hmy22466/p/17842611.html