Java Swing知识总结 Java Swing最详细基础知识总结

JFrame jf=new JFrame(title);
Container container=jf.getContentPane();

container.add(new JButton("按钮");

package xmsj;
 
import java.awt.Color;
import java.awt.Container;
 
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import javax.swing.WindowConstants;
 
public class test1 {
	public static void main(String[] args){
		//创建一个窗体对象
		JFrame jf=new JFrame("这是一个JFrame窗体");
		//获取一个容器，用来放置各种组件或布局管理器
		Container container=jf.getContentPane();
		JLabel jl=new JLabel("这是一个JFrame窗体"); //创建一个JLabel标签
		//使标签上的文字居中	
		jl.setHorizontalAlignment(SwingConstants.CENTER);
		//将标签添加到容器中
		container.add(jl);
		container.setBackground(Color.white);  //设置容器的背景颜色
		//设置窗体可见
		jf.setVisible(true);
		//设置窗体大小
		jf.setSize(200,150);
		//设置窗体关闭方式
		jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
	}
 
}

package njci.software.MyNotePad2018;
 
import java.awt.Container;
 
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
 
public class ConfigDialog extends JDialog {
 
	/**
	 * 
	 */
	private static final long serialVersionUID = -713398359834685238L;
	public ConfigDialog(JFrame frame){
		super(frame,"这是一个对话框",true);
		//Container container=getContentPane(); //创建一个容器
		//container.add(new JLabel("这是一个对话框")); //在容器中添加标签
		//添加内部控件
		JPanel pnlConfig=new JPanel();
		pnlConfig.setLayout(null);
		JLabel lblWidth=new JLabel("宽度");
		JLabel lblHeight=new JLabel("高度");
		final JTextField txtWidth=new JTextField();
		final JTextField txtHeight=new JTextField();
		JButton btnSave=new JButton("保存");
		JButton btnCancel=new JButton("取消");
		
		//进行布局
		
		lblWidth.setBounds(50,30,60,40);
		txtWidth.setBounds(150,30,160,40);
		lblHeight.setBounds(50,100,60,40);
		txtHeight.setBounds(150,100,160,40);
		btnSave.setBounds(50,160,100,40);
		btnCancel.setBounds(200,160,100,40);
		pnlConfig.add(lblWidth);
		pnlConfig.add(txtWidth);
		pnlConfig.add(lblHeight);
		pnlConfig.add(txtHeight);
		pnlConfig.add(btnSave);
		pnlConfig.add(btnCancel);
		this.add(pnlConfig);
		this.setSize(400,320);
		this.setResizable(false);//窗体大小不可改变
		this.setLocationRelativeTo(frame);;//居中显示
		
	}
 
}

package javaswing;
 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
 
public class MyFrame extends JFrame {
	private static final long serialVersionUID = 4232937812480671357L;
	public MyFrame(){
		final JFrame frmMain=new JFrame("我的第一个记事本");
		frmMain.setSize(400,300);
		frmMain.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
		frmMain.setLocationRelativeTo(null);  //居中显示
		frmMain.setVisible(true);
		ConfigDialog dlgConfig=new ConfigDialog(frmMain);
		dlgConfig.setVisible(true);
		
		
		
		
	}
 
	/**
	 * 
	 */
	
	
public static void main(String[] args){
	new MyFrame();
	
}
}

package javaswing;
 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
 
public class MyFrame extends JFrame {
	private static final long serialVersionUID = 4232937812480671357L;
	public MyFrame(){
		final JFrame frmMain=new JFrame("我的第一个记事本");
		frmMain.setSize(400,300);
		frmMain.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
		frmMain.setLocationRelativeTo(null);  //居中显示
		frmMain.setVisible(true);
		//为按钮添加一个单机事件
		JButton jbn=new JButton("系统配置");
		frmMain.add(jbn);
		
		
		
	}
 
	/**
	 * 
	 */
	
	
public static void main(String[] args){
	new MyFrame();
	
}
}

package javaswing;
 
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
 
public class ConfigDialog extends JDialog {
 
	/**
	 * 
	 */
	private static final long serialVersionUID = -713398359834685238L;
	public ConfigDialog(JFrame frame){
		super(frame,"这是一个对话框",true);
		//Container container=getContentPane(); //创建一个容器
		//container.add(new JLabel("这是一个对话框")); //在容器中添加标签
		//添加内部控件
		JPanel pnlConfig=new JPanel();
		pnlConfig.setLayout(null);
		JLabel lblWidth=new JLabel("宽度");
		JLabel lblHeight=new JLabel("高度");
		final JTextField txtWidth=new JTextField();
		final JTextField txtHeight=new JTextField();
		JButton btnSave=new JButton("保存");
		JButton btnCancel=new JButton("取消");
		
		//进行绝对布局
		
		lblWidth.setBounds(50,30,60,40);
		txtWidth.setBounds(150,30,160,40);
		lblHeight.setBounds(50,100,60,40);
		txtHeight.setBounds(150,100,160,40);
		btnSave.setBounds(50,160,100,40);
		btnCancel.setBounds(200,160,100,40);
		pnlConfig.add(lblWidth);
		pnlConfig.add(txtWidth);
		pnlConfig.add(lblHeight);
		pnlConfig.add(txtHeight);
		pnlConfig.add(btnSave);
		pnlConfig.add(btnCancel);
		this.add(pnlConfig);
		this.setSize(400,320);
		this.setResizable(false);//窗体大小不可改变
		this.setLocationRelativeTo(frame);;//居中显示
		
	}
 
 
	public static void main(String[] args) {
		//new ConfigDialog(frame);
 
	}
 
}

package javaswing;
 
import java.awt.Container;
import java.awt.FlowLayout;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.WindowConstants;
 
public class FlowLayoutDemo extends JFrame{
	public FlowLayoutDemo(){
		setTitle("本窗体使用流布局管理器");      //设置窗体标题
		Container c=getContentPane();
		//设置窗体使用流布局管理器，使组件右对齐，并且设置组件之间的水平间隔与垂直间隔
		setLayout(new FlowLayout(2,10,10));
		for(int i=0;i<10;i++){
			c.add(new JButton("按钮"+i));
		}
		setSize(300,200);
		setVisible(true);
		setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
	}
	public static void main(String[] args){
		new FlowLayoutDemo();
 
	}
	}

package javaswing;
 
import java.awt.Container;
import java.awt.GridLayout;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.WindowConstants;
 
public class GridLayoutPosition extends JFrame{
	public GridLayoutPosition(){
		Container c=getContentPane();
		//设置容器使用网络布局管理器，设置7行3列的网格，行间距为5，列间距为5
		setLayout(new GridLayout(7,3,5,5));
		for(int i=0;i<20;i++){
			c.add(new JButton("按钮"+i)); //循环添加按钮
		}
		setSize(300,300);
		setTitle("这是一个使用网格布局管理器的窗体");
		setVisible(true);
		setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
	}
	public static void main(String[] args){
		new GridLayoutPosition();
	}
 
}

package javaswing;
 
import java.awt.BorderLayout;
import java.awt.Container;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.WindowConstants;
 
public class BorderLayoutPosition extends JFrame{
	//定义组件摆放位置的数组
	String[] border={BorderLayout.CENTER,BorderLayout.NORTH,BorderLayout.SOUTH,BorderLayout.WEST,BorderLayout.EAST};
	String[] buttonName={"center button","north button","south button","west button","east button"};
	public BorderLayoutPosition(){
		setTitle("这个窗体使用边界布局管理器");
		Container c=getContentPane(); //定义一个容器
		setLayout(new BorderLayout());  //设置容器为边界布局管理器
		for(int i=0;i<border.length;i++){
			//在容器中添加按钮，并设置按钮布局
			c.add(border[i],new JButton(buttonName[i]));
		}
		setSize(350,250); //设置窗体大小
		setVisible(true);  //设置窗体可见
		//设置窗体关闭方式
		setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
	}
	public static void main(String[] args){
		new BorderLayoutPosition();
	}
	
 
}