Java AWT工具包 _JavaAWT工具包

本文概述

AWT Toolkit类声明
Java AWT工具包示例
Java AWT Toolkit示例：beep()
Java AWT Toolkit示例：更改TitleBar图标

Toolkit类是Abstract Window Toolkit中每个实现的抽象超类。 Toolkit的子类用于绑定各种组件。它继承了Object类。
AWT Toolkit类声明

public abstract class Toolkit extends Object

Java AWT工具包示例

import java.awt.*; public class ToolkitExample { public static void main(String[] args) { Toolkit t = Toolkit.getDefaultToolkit(); System.out.println("Screen resolution = " + t.getScreenResolution()); Dimension d = t.getScreenSize(); System.out.println("Screen width = " + d.width); System.out.println("Screen height = " + d.height); } }

输出：

Screen resolution = 96 Screen width = 1366 Screen height = 768

Java AWT Toolkit示例：beep()

import java.awt.event.*; public class ToolkitExample { public static void main(String[] args) { Frame f=new Frame("ToolkitExample"); Button b=new Button("beep"); b.setBounds(50, 100, 60, 30); f.add(b); f.setSize(300, 300); f.setLayout(null); f.setVisible(true); b.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ Toolkit.getDefaultToolkit().beep(); } }); } }

输出：

文章图片
Java AWT Toolkit示例：更改TitleBar图标

import java.awt.*; class ToolkitExample { ToolkitExample(){ Frame f=new Frame(); Image icon = Toolkit.getDefaultToolkit().getImage("D:\\icon.png"); f.setIconImage(icon); f.setLayout(null); f.setSize(400, 400); f.setVisible(true); } public static void main(String args[]){ new ToolkitExample(); } }

【Java AWT工具包】输出：