Question

那为高手能帮在下解释一下面的java语句时什么意思？急！谢谢了！

p.setBorder(BorderFactory.createLoweredBevelBorder());

Answer 1

setBorder是设置边框的

比如默认的label标签，没有边框就是确定按钮后面的一行字，设置了边框以后

createLoweredBevelBorder()这个的样式就是这样的，陷下去了，下面是测试程序，你还可以设置其他的边框样式：

// jLabel.setBorder(BorderFactory.createLineBorder(Color.red));

// jLabel.setBorder(BorderFactory.createEtchedBorder());

代码：

import java.awt.Color;

import java.awt.Container;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

public class MyFrame extends JFrame{

boolean flag = false;

public MyFrame(){

init();

}

private void init() {

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setSize(200, 300);

setContentPane(initPanel());

}

private Container initPanel() {

JPanel panel = new JPanel();

final JLabel jLabel = new JLabel("斯蒂芬螺丝刀理发师");

JButton button = new JButton("确定");

button.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

if(flag){

//设置边框

jLabel.setBorder(BorderFactory.createLoweredBevelBorder());

// jLabel.setBorder(BorderFactory.createLineBorder(Color.red));

// jLabel.setBorder(BorderFactory.createEtchedBorder());

}else{

jLabel.setBorder(null);

}

flag = !flag;

}

});

panel.add(button);

panel.add(jLabel);

return panel;

}

public static void main(String[] args) {

MyFrame frame = new MyFrame();

frame.setVisible(true);

}

}

Answer 2

是p.setBorder(BorderFactory.createLoweredLevelBorder());吧？就是给p对象set一个boder，这个border是从一个工厂里面取的

Answer 3

分成两部分，BorderFactory.createLoweredBevelBorder() 获取值，p.setBorder，给其赋值