java 参数化类型

package com.gxf.collection;

import java.util.LinkedList;

public class TestForT<T> {
    private LinkedList<T> storage = new LinkedList<T>();
    
    /**
     * 压栈操作
     * @param element
     */
    public void push(T element){
        storage.addFirst(element);
    }
    /**
     * 出栈
     * @return
     */
    public T pop(){
        return storage.removeFirst();
    }
    
    /**
     * 判断栈是否为空
     * @return
     */
    public boolean isEmpty(){
        return storage.isEmpty();
    }

    public static void main(String[] args) {
        TestForT<Integer> stack = new TestForT<Integer>();
        stack.push(1);
        stack.push(2);
        stack.push(3);
        stack.push(4);
        stack.push(5);
        
        while(!stack.isEmpty()){
            System.out.println(stack.pop());
        }
    }

}

output:

5
4
3
2
1