java_类泛型基本实例

package ming;

public class Apple2<T> {

public T info;

public Apple2(T info) {
this.info = info;
}

public T getInfo() {
return info;
}

public void setInfo(T info) {
this.info = info;
}

public static void main(String[] args) {
//T 实际类型是String
Apple2<String> a1 = new Apple2<String>("苹果");

System.out.println(a1.getInfo());

Apple2<Double> a2 = new Apple2<Double>(1.23);

System.out.println(a2.getInfo());

}

}