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java 公共组件_【JAVA语言程序设计基础篇】--Swing GUI组件的公共特性

程序员文章站 2022-05-25 19:50:39
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package chapter12;

import java.awt.Color;

import java.awt.FlowLayout;

import java.awt.Font;

import java.awt.GridLayout;

import javax.swing.JPanel;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.border.LineBorder;//线框

import javax.swing.border.TitledBorder;//标题框

@SuppressWarnings("serial")

public class TestSwingCommonFeatures extends JFrame{

public TestSwingCommonFeatures(){

JPanel p1 = new JPanel (new FlowLayout(FlowLayout.LEFT,2,2));

JButton jbtleft = new JButton("left");

JButton jbtcenter = new JButton("CENTER");

JButton jbtright = new JButton("right");

jbtleft.setBackground(Color.white);

jbtcenter.setForeground(Color.green);

jbtright.setToolTipText("this is the right button");

p1.add(jbtleft);

p1.add(jbtcenter);

p1.add(jbtright);

p1.setBorder(new TitledBorder("three buttons"));

//-------------------------------------//

Font largeFont =new Font ("TimesRoman",Font.BOLD,20);//字体

JPanel p2 = new JPanel (new FlowLayout(FlowLayout.LEFT,5,5));

JButton jbtred = new JButton ("red");

JButton jbtorange = new JButton("orange");

jbtred.setFont(largeFont);

jbtred.setBackground(Color.red);

jbtorange.setForeground(Color.orange);

jbtorange.setToolTipText("this is a orange button");

p2.add(jbtred);

p2.add(jbtorange);

p2.setBorder(new LineBorder(Color.green,4));//被下一行覆盖

p2.setBorder(new TitledBorder("a"));

p2.setLayout(new GridLayout(1,2,1,10));

setLayout(new FlowLayout(FlowLayout.LEFT,30,30));

setLayout(new GridLayout(1,2,5,10));//下一行有一个新的setlayout 这一样的setlayout被覆盖,就不显示了

add(p1);

add(p2);

}

public static void main(String[] args) {

JFrame frame = new TestSwingCommonFeatures();

frame.setTitle("test swing common features");

frame.setSize(500, 150);

frame.setLocationRelativeTo(null);//放中间

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

}

展示

Font 字体

Color 颜色

Border 框

java 公共组件_【JAVA语言程序设计基础篇】--Swing GUI组件的公共特性

原文:http://blog.csdn.net/qq_24653023/article/details/52102692

相关标签: java 公共组件