匿名类和匿名内部类

/**
 * 父类A
 * @author Rick
 *
 */
public class A {
public void say() {
System.out.println("哈哈A！");
}

}

/**
 * 子类B
 * @author Rick
 *
 */
public class B extends A {

@Override
public void say() {
System.out.println("哈哈B！");
}
}

/**
 * 测试匿名类和匿名内部类
 * @author Rick
 *
 */
public class Test {

private void doSth(A a) {
a.say();
}

public static void main(String[] args) {
Test t = new Test();
t.doSth(new B()); //匿名类

t.doSth(new A() { //匿名内部类
@Override
public void say() {
System.out.println("22222");
}
});
}
}