package www.qyl.lesson01;
import javax.swing.*;
import java.awt.*;
public class TestFrame {
    public static void main(String[]args){
        JFrame frame = new JFrame("第一个GUI窗口");  
        frame.setSize(400,400);    //设置窗口大小
        frame.setLocation(200,200);  //弹出的初始位置
        frame.setBackground(new Color(49, 77, 125));  //设置背景颜色
        frame.setResizable(false); //设置大小固定（不可调整大小）
        frame.setVisible(true);  //设置窗口可见性
    }
}

package www.qyl.lesson01;
import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class TestPanel {
    public static void main(String[] args) {
        JFrame frame = new JFrame();   //创建窗体
        JPanel panel = new JPanel();    //创建面板
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);   //设置窗体可关闭
        frame.setLayout(null);          //定义布局为 绝对布局
        frame.setBounds(200,200,300,300);   //设置窗体x,y的坐标（弹出位置）和宽度、高度
        // frame.setBackground(new Color(52, 111, 121));    这样设置没有效果
        frame.getContentPane().setBackground(new Color(52, 111, 121)); //设置窗体背景颜色
        frame.setResizable(true);
        frame.setVisible(true);
        panel.setBackground(new Color(56, 127, 96));   //设置面板背景颜色
        panel.setBounds(50,50,180,150);
        frame.add(panel);   //将面板放入到窗体中
    }
}

package www.qyl.lesson01;
import javax.swing.*;
import java.awt.*;
public class TestFlowLayout {
    public static void main(String[] args) {
        JFrame frame = new JFrame();
    //组件-按钮
        Button button1 = new Button("button1");
        Button button2 = new Button("button2");
        Button button3 = new Button("button3");
    //设置为流式布局
        frame.setLayout(new FlowLayout(FlowLayout.RIGHT));  //默认为从左到右，这里设置靠右边right
        frame.setSize(300,300);
        frame.add(button1);
        frame.add(button2);
        frame.add(button3);
        frame.setVisible(true);
    }
}

package www.qyl.lesson01;
import javax.swing.*;
import java.awt.*;
public class TestBorderLayout {
    public static void main(String[] args) {
        JFrame frame = new JFrame("TestBorderLayout");
        Button button1 = new Button("button1");
        Button button2 = new Button("button2");
        Button button3 = new Button("button3");
        Button button4 = new Button("button4");
        Button button5 = new Button("button5");
    //设置东南西北中布局
        frame.add(button1,BorderLayout.EAST);  
        frame.add(button2,BorderLayout.WEST);
        frame.add(button3,BorderLayout.SOUTH);
        frame.add(button4,BorderLayout.NORTH);
        frame.add(button5,BorderLayout.CENTER);
        frame.setSize(300,300);
        frame.setVisible(true);
    }
}

package www.qyl.lesson01;
import javax.swing.*;
import java.awt.*;
public class TestGridLayout {
    public static void main(String[] args) {
        JFrame frame = new JFrame("TestBorderLayout");
        Button button1 = new Button("button1");
        Button button2 = new Button("button2");
        Button button3 = new Button("button3");
        Button button4 = new Button("button4");
        Button button5 = new Button("button5");
        Button button6 = new Button("button6");
    //设置网格布局，3行2列
        frame.setLayout(new GridLayout(3,2));
        frame.add(button1);
        frame.add(button2);
        frame.add(button3);
        frame.add(button4);
        frame.add(button5);
        frame.add(button6);
        frame.setSize(300,300);
        frame.setVisible(true);
    }
}

package www.qyl.lesson01;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class TestActionEvent {
    public static void main(String[] args) {
        JFrame jFrame = new JFrame();
        JButton button = new JButton("button1");
        jFrame.setBounds(10,10,300,300);
        jFrame.setVisible(true);
        jFrame.add(button);
        button.addActionListener(new MyActionEvent());
    }
}
class MyActionEvent implements ActionListener{
    @Override
    public void actionPerformed(ActionEvent e) {
        System.out.println("你点击了按钮！！");
    }
}