class Father
{
public static void main(String[] args)
{
System.out.println("Hello World!");
}
}public class Child extends Father
{
public static void main(String[] args)
{
System.out.println("The Child");
}
}看看这个编译 javac Child.java
运行: java Child
{
public static void main(String[] args)
{
System.out.println("Hello World!");
}
}public class Child extends Father
{
public static void main(String[] args)
{
System.out.println("The Child");
}
}看看这个编译 javac Child.java
运行: java Child
那当然,你java 哪个,运行的就是哪个。这也是一种不错的测试方法。
这时生成两个class文件:Child.class和Father.class
运行一:java Child
结果一:The Child运行二:java Father
结果二:Hello World!