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  1. PO
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    <p>I agree please use something like arraylist. <a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/util/Stack.html" rel="nofollow">http://docs.oracle.com/javase/1.4.2/docs/api/java/util/Stack.html</a> Is already implemented class but i fixed your code in case you are new to java and just are playing around with it. Did not check logic but hopefully syntax correction helps </p> <pre><code> package Temp; public class GeneralStack { int[] stack; //not sure how to declare this private int count; private int maxCapacity; private static final int DEFAULT_CAPACITY = 100; //default constructor public GeneralStack() { stack = new int[DEFAULT_CAPACITY]; count = 0; maxCapacity = this.DEFAULT_CAPACITY; } //alternate constructor public GeneralStack (int maxCapacity) { stack = new int[maxCapacity]; count = 0; this.maxCapacity = maxCapacity; } //accessor getCount public int getCount () { return count; } //accessor isEmpty public boolean isEmpty () { boolean isEmpty=false; if (count == 0); { isEmpty=true; } return isEmpty; } //accessor isFull public boolean isFull () { boolean isFull=false; if (count == maxCapacity); { isFull=true; } return isFull; } //mutator push public void push (int value) { if (isFull ()) { throw new IllegalArgumentException("Stack is full"); } else { stack[count] = value; //not sure how to assign value to the stack count++; } } // you cant return value from void function so changing it to int return you can ignore a return value public int pop () { int topVal = topVal(); count = count-1; return topVal; } //accessor top public int topVal () { int topVal; if (isEmpty()) { throw new IllegalArgumentException("Stack is empty"); } else { topVal=stack[count-1]; } return topVal; } } </code></pre>
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    1. POCreating an object stack class - where did I go wrong?
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    1. USYogesh Italia
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    1. VO
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      1. VTDownMod
    1. CODo __not__ use `Stack` when using JDK 6+. Read the [documentation on the class in JDK 7](http://docs.oracle.com/javase/7/docs/api/java/util/Stack.html): A more complete and consistent set of LIFO stack operations is provided by the Deque interface and its implementations, which should be used in preference to this class. For example: `Deque<Integer> stack = new ArrayDeque<Integer>();`
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      1. USoldrinb
    2. CO-1 for referencing documentation to an ancient version of Java (Java 1.4, hello 2002).
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