Contains methods for Stack

Author: theArjun

general/Stack.java

@@ -0,0 +1,57 @@
+public class Stack {
+	private int[] stack;
+	private static int tos;
+
+	Stack() {
+		stack = new int[5];
+		tos = -1;
+	}
+
+	public boolean isEmpty() {
+		if (tos < 0) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	public boolean isFull() {
+		if (tos >= 5) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	public boolean push(int data) {
+		if (!isFull()) {
+			stack[++tos] = data;
+			System.out.println("Data pushed : " + data);
+			return true;
+		}
+		return false;
+	}
+
+	public int pop() {
+		if (!isEmpty()) {
+			int data = stack[tos--];
+			System.out.println("Data popped : " + data);
+			return data;
+		}
+		return -1;
+	}
+
+	public void display() {
+		if(!isEmpty()){
+            System.out.print("Elements in Stack : [ ");
+			for (int i = 0; i <= 5; i++) {
+				System.out.print(stack[tos] + " ");
+            }
+            System.out.print("]\n");
+		}else{
+			System.out.println("Empty\n");
+		}
+	}
+}
+
+