Java Swing 之查看图标信息

/**
 *查看图标的信息
 *@author gao
 */
package com.gao;

import java.awt.FlowLayout;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;

public class ImageInfoDemo extends JFrame{
	public ImageInfoDemo (){
		this.setTitle("查看图标信息");
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setBounds(100, 100, 300, 150);
		JPanel contentPane=new JPanel();
		contentPane.setBorder(new EmptyBorder(5,5,5,5));
		this.setContentPane(contentPane);
		contentPane.setLayout(new FlowLayout(FlowLayout.CENTER,5,5));
		JLabel label=new JLabel("");
		ImageIcon icon=new ImageIcon("1.png");
		label.setIcon(icon);
		StringBuilder sb=new StringBuilder();
	    sb.append("图标宽度："+icon.getIconWidth()+",");
	    sb.append("图标高度："+icon.getIconHeight());
	    label.setText(sb.toString());
	    contentPane.add(label);
	    this.setVisible(true);
	}
    public static void main(String []args){
    	ImageInfoDemo example=new ImageInfoDemo();
    }
}

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