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Java和C++版本的簡單Stack程序

2019-11-18 15:30:13

字體：大中小

來源：轉載

供稿：網友

　　現在對C++學習了一段時間，把C++的特性和java做比較有很強烈的快感:P
自己寫了兩個版本的Stack:

Java版本:
源代碼Stack.java
package org;
public class Stack ...{
public static class Link ...{

PRotected Object data;

protected Link next;

public Link(Object data, Link next) ...{
this.data = data;
this.next = next;
}
}

private Link head = null;

public void push(Object data) ...{
head = new Link(data, head);
}

public Object peek() ...{
return head.data;
}

public Object pop() ...{
if (head == null)
return null;
Object o = head.data;
head = head.next;
return o;
}

} 測試代碼StackTest.java
package org;
import junit.framework.TestCase;

public class StackTest extends TestCase ...{

public void test1() ...{
Stack s = new Stack();

assertEquals(null, s.pop());
　　s.push("a");
s.push("b");

assertEquals("b", s.peek());
assertEquals("b", s.pop());
assertEquals("a", s.pop());

assertEquals(null, s.pop());
}

public void test2() ...{
Stack s = new Stack();

assertEquals(null, s.pop());

s.push(new Integer(1));
s.push(new Integer(2));

assertEquals(2, ((Integer)s.peek()).intValue());
assertEquals(2, ((Integer)s.pop()).intValue());
assertEquals(1, ((Integer)s.pop()).intValue());

assertEquals(null, s.pop());
}

}

C++版本:
源代碼:
Stack.cpp
#include
#include
#include
using namespace std;

class Stack ...{

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