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Thread: What would be the output of this?

  1. #1
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    Default What would be the output of this?

    This was a homework assignment given to me and I got the answer (listed later), but I was wondering if anyone could check it over and see if i'm correct:
    a)
    //Assume that you can store and retrieve variables of type int on stack
     
    item1 = 1;
    item2 = 0;
    item3 = 4;
    stack.push(item2); // push puts one item on top of stack
    stack.push(item1);
    stack.push(item1 + item3);
    item2 = stack.top; //retrieves node info at top of stack
    stack.push(item3*item3);
    stack.push(item2);
    stack.push(3);
    item1 = stack.top();
    stack.pop(); // pop() removes top item from stack
    System.out.println(item1 + " " + item2 + " " + item3);
    while(!stack.isEmpty()){
       item1 = stack.top();
       stack.pop();
       System.out.println(item1);
    }
    My result is:
    3 5 4
    5
    16
    5
    1
    0

    b)
    item1 = 4;
    item3 = 0;
    item2 = item1+1;
    stack.push(item2);
    stack.push(item2+1);
    stack.push(item1);
    item2 = stack.top();
    stack.pop();
    item1 = item2+1;
    stack.push(item1);
    stack.push(item3);
    while(!stack.isEmpty()){
    item3 = stack.top();
    stack.pop();
    System.out.println(item3);
    }
    System.out.println(item1 + " " + item2 + " " + item3);
    My result is:
    0
    5
    6
    5
    5 4 5


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: What would be the output of this?

    What happened when you wrote a small program that runs this?
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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    Default Re: What would be the output of this?

    They look both correct. Not too hard with pen and paper (and of course I could not find any of them ).

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