File size: 848 Bytes
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public class Stack {
static final int MAX = 1000;
int top;
int[] a = new int[MAX];
boolean isEmpty() {
return (top < 0);
}
Stack() {
top = -1;
}
boolean push(int x) {
if (top >= (MAX - 1)) {
System.out.println("Stack Overflow");
return false;
} else {
a[++top] = x;
System.out.println(x + " pushed into stack");
return true;
}
}
int pop() {
if (top < 0) {
System.out.println("Stack Underflow");
return 0;
} else {
return a[top--];
}
}
public static void main(String[] args) {
Stack s = new Stack();
s.push(10);
s.push(20);
s.push(30);
System.out.println(s.pop() + " Popped from stack");
}
}
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