泛型对象的Java声明实现

public class GenericClass<T> {
    private T value;

    public GenericClass(T value) {
        this.value = value;
    }

    public T getValue() {
        return value;
    }

    public void setValue(T value) {
        this.value = value;
    }
}

GenericClass<Integer> intObj = new GenericClass<>(10);
int value = intObj.getValue(); // 获取整数值

GenericClass<String> strObj = new GenericClass<>("Hello");
String strValue = strObj.getValue(); // 获取字符串值