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StackUsingArray.java
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StackUsingArray.java
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// Write a Program to implement stack operations using arrays.
class Stack_2{
private int arr[];
private int top;
private int capacity;
Stack_2(int size) {
arr = new int[size];
capacity = size;
top = -1;
}
public void push(int x) {
if (isFull()) {
System.out.println("OverFlow\nProgram Terminated\n");
System.exit(1);
}
System.out.println("Inserting " + x);
arr[++top] = x;
}
public int pop() {
if (isEmpty()) {
System.out.println("STACK EMPTY");
System.exit(1);
}
return arr[top--];
}
public int size() {
return top + 1;
}
public Boolean isEmpty() {
return top == -1;
}
public Boolean isFull() {
return top == capacity - 1;
}
public void printStack() {
for (int i = 0; i <= top; i++) {
System.out.println(arr[i]);
}
}
public static void main(String[] args) {
Stack_2 stack = new Stack_2(5);
stack.push(1);
stack.push(2);
stack.push(3);
stack.push(4);
stack.pop();
System.out.println("\nAfter popping out");
stack.printStack();
}
}