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- /*
- *Stack
- *Samuel Berkat Hulu
- *version 5.0 ETS Sturktur Data
- */
- class stack
- {
- private int maxSize;
- private char[] stackArray;
- private int top;
- public stack(int s)
- {
- maxSize = s;
- stackArray = new char[maxSize];
- top = -1;
- }
- public void push(char j)
- { stackArray[++top] = j; }
- public char pop()
- { return stackArray[top--]; }
- public char peek()
- { return stackArray[top]; }
- public boolean isEmpty()
- { return (top == -1); }
- public int size()
- { return top+1; }
- public char peekN(int n)
- { return stackArray[n]; }
- }
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