不说了，直接上代码:
public class NewTest {
public static void main(String[] args) {
N<Integer> n1 = new N<Integer>(1) {
@Override
void handler() {
System.out.println("这个是数字:" + this.getContent());
}
};
n1.handler();
var n2 = new N<String>("这个是字符串，用var定义临时变量哦") {
@Override
void handler() {
System.out.println("这个是字符串文本哦:" + this.getContent());
}
};
n2.handler();
/*我可以匿名哦,JDK9支持哦*/
N<?> n3 = new N<>("object") {
@Override
void handler() {
System.out.println("object:"+this.getContent());
}
};
n3.handler();
}
}
abstract class N<T> {
private T content;
public N(T content) {
this.content = content;
}
public T getContent() {
return content;
}
public void setContent(T content) {
this.content = content;
}
abstract void handler();
}