import javax.swing.*;
public class Version{
public static void main(String args[]){
JLabel l=new JLabel();
Package p=Package.getPackage("javax.swing");
if(p!=null){
System.out.print("Swing Version: ");
System.out.println(p.getSpecificationVersion());
}
p=Package.getPackage("java.awt");
if(p!=null){
System.out.print("AWT Version: ");
System.out.println(p.getSpecificationVersion());
}
}
}
运行结果:
C:\java>java Version
Swing Version: 1.4
AWT Version: 1.4
C:\java>
↑返回目录
前一篇: 菜单栏与工具条及弹出菜单
后一篇: Echo程序