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  1. PO
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    <p>Your code seems to give the right combination of Numbers, but it fails to give the right combination of Index.</p> <p>This is because you are calling <code>pop</code> function which removes an item from a Stack thereby decreasing its size by 1. Hence the Index you get, is the index as compared to the Stack's size at that instant.</p> <p>Instead I would suggest, to use <code>peek()</code> or <code>get(int index)</code> function to read the values. I have updated your example with <code>get(index)</code> without cloning the Stack...hv a look...</p> <pre><code>import java.util.Stack; public class Class2 { public static void main(String[] args) { int x = 100; Stack stack=new Stack(); Stack tempStack=new Stack(); stack.push(new Integer(20)); stack.push(new Integer(53)); stack.push(new Integer(41)); stack.push(new Integer(38)); stack.push(new Integer(28)); stack.push(new Integer(47)); stack.push(new Integer(70)); stack.push(new Integer(30)); stack.push(new Integer(80)); stack.push(new Integer(400)); stack.push(new Integer(3)); stack.push(new Integer(20)); // tempStack = (Stack) stack.clone(); for (int i=0; i&lt;stack.size(); i++) { // tempStack = (Stack) stack.clone(); int value = (Integer) stack.get(i); if (!stack.isEmpty()) { for (int k=i+1; k&lt;stack.size()-1; k++) { int tmp = (Integer) stack.get(k); System.out.println("Value"+value+" tmp "+tmp+"Stack size"+stack.size()); if ((value + tmp) == x) { System.out.println("Indices " + i + " &amp; " + k + " with values " + value + " &amp; " + tmp); } } } } } } </code></pre>
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    1. POJava - Stacks - checking if 2 numbers of the stack equal 100
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    1. USShashank Kadne
    1. USShashank Kadne
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      1. VTUpMod
    1. COI tried your way but i don't know I get only 3 outputs. Using the array I get many more values as output.
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      1. USuser1234905
 

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