public class Parent {
public static String getMessage() {
return "I am the parent";
}
}
public class Child extends Parent {
public static String getMessage() {
return "I am the child";
}
}
public static void main( String [] args ) {
Parent p = new Parent();
Child c = new Child();
System.out.println( p.getMessage() );
System.out.println( c.getMessage() );
Parent p2 = c; // upcast the child
System.out.println( p2.getMessage() );
// if overriding works, you should still
// see "I am the child."
// actually it is "I am the parent";
word to chm,十分方便,实用!!!
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