JAVA:URL之String组件

import javax.swing.*;
import java.awt.*;
import javax.swing.border.*;
public class TestSwingCommonFeatures extends JFrame
{
    public TestSwingCommonFeatures()
    {
        JPanel p1 = new JPanel(new FlowLayout(FlowLayout.LEFT,2,2));//创建一个面板，使用流布局
        JButton jbtLeft = new JButton("Left");
        JButton jbtCenter = new JButton("Center");
        JButton jbtRight = new JButton("Right");
        jbtLeft.setBackground(Color.WHITE);//设计背景色
        jbtCenter.setForeground(Color.GREEN);//设计前景色
        jbtRight.setToolTipText("This is the Right button");//设置工具提示文本
        p1.add(jbtLeft);
        p1.add(jbtCenter);
        p1.add(jbtRight);
        p1.setBorder(new TitledBorder("Three Button"));//创建标题边界
        Font largeFont = new Font("TimesRoman",Font.BOLD,20);//创建字体对象
        Border lineBorder = new LineBorder(Color.BLACK,2);//创建一个线边界对象
        JPanel p2 = new JPanel(new GridLayout(1,2,5,5));//创建另一个面板,使用网格布局
        JLabel jlbRed = new JLabel("Red");
        JLabel jlbOrange = new JLabel("Orange");
        jlbRed.setForeground(Color.RED);//设计前景色
        jlbOrange.setForeground(Color.ORANGE);
        jlbRed.setFont(largeFont);//设计字体
        jlbOrange.setFont(largeFont);
        jlbRed.setBorder(lineBorder);//设计线边界
        jlbOrange.setBorder(lineBorder);
        p2.add(jlbRed);
        p2.add(jlbOrange);
        p2.setBorder(new TitledBorder("Two Labels"));//设置标题边界
        setLayout(new GridLayout(2,1,5,5));//边框内设置为网格布局
        add(p1);//将面板添加到边框内
        add(p2);
    }
    public static void main(String[] agrs)
    {
        JFrame frame = new TestSwingCommonFeatures();
        frame.setTitle("TestSwingCommonFeatures");
        frame.setSize(300,150);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
}