不用匿名内部类 interface A{ public void printInfo(); } class B implements A{ public void printInfo(){ System.out.println("Hello World!!!"); } } class X{ public void fun1(){ this.fun2(new B()); } public void fun2(A a){ a.printInfo(); } } public class Test{ public static void main(String args[]){ new X().fun1(); } } 匿名内部类 interface A{ public void printInfo(); } class X{ public void fun1(){ this.fun2(new A(){ public void printInfo(){ System.out.println("Hello World!!!"); }//内部类 }); } public void fun2(A a){ a.printInfo(); } } public class Test{ public static void main(String args[]){ new X().fun1(); } }
interface A{
public void printInfo();
}
class B implements A{
public void printInfo(){
System.out.println("Hello World!!!");
}
}
class X{
public void fun1(){
this.fun2(new B());
}
public void fun2(A a){
a.printInfo();
}
}
public class Test{
public static void main(String args[]){
new X().fun1();
}
}
匿名内部类
interface A{
public void printInfo();
}
class X{
public void fun1(){
this.fun2(new A(){
public void printInfo(){
System.out.println("Hello World!!!");
}//内部类
});
}
public void fun2(A a){
a.printInfo();
}
}
public class Test{
public static void main(String args[]){
new X().fun1();
}
}