JavaArithmetic/src/datastructure/stack/ArrayStack.java at master · freestylewill/JavaArithmetic · GitHub

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package datastructure.stack;

public class ArrayStack<E> implements Stack<E> {

private Array<E> array;

public ArrayStack(int capacity) {

array = new Array<>(capacity);

}

public ArrayStack() {

array = new Array<>();

}

@Override

public int getSize() {

return array.getSize();

}

@Override

public boolean isEmpty() {

return array.isEmpty();

}

public int getCapacity() {

return array.getCapacity();

}

@Override

public void push(E e) {

array.addLast(e);

}

@Override

public E pop() {

return array.removeLast();

}

@Override

public E peek() {

return array.getLast();

}

@Override

public String toString() {

StringBuilder res = new StringBuilder();

res.append("Stack: ");

res.append('[');

for (int i = 0; i < array.getSize(); i++) {

res.append(array.get(i));

if (i != array.getSize() - 1)

res.append(", ");

}

res.append("] top");

return res.toString();

}

JavaArithmetic/src/datastructure/stack/ArrayStack.java at master · freestylewill/JavaArithmetic · GitHub

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