File size: 1,435 Bytes
c574d3a |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 |
class Stack {
private int arr[];
private int top;
private int capacity;
// Initializing a stack
Stack(int size) {
arr = new int[size];
capacity = size;
top = -1;
}
// Insert elements into stack
public void push(int x) {
if (isFull()) {
System.out.println("Stack OverFlow");
return;
}
System.out.println("Inserting " + x);
arr[++top] = x;
}
// Remove element from stack
public int pop() {
if (isEmpty()) {
System.out.println("Stack is Empty");
return -1;
}
return arr[top--];
}
// Check if the stack is empty
public Boolean isEmpty() {
if (top == -1)
return true;
else
return false;
}
// Check if the stack is full
public Boolean isFull() {
if (top == capacity - 1)
return true;
else
return false;
}
public void printStack() {
for (int i = 0; i <= top; i++) {
System.out.println(arr[i]);
}
}
}
public class StackDataStructure {
public static void main(String[] args) {
Stack stack = new Stack(5);
stack.push(1);
stack.push(2);
stack.push(3);
stack.push(4);
stack.pop();
System.out.println("\nAfter popping out");
stack.printStack();
}
} |