import ballerina/io;

public function main() {
    int[] stack = [];
    stack.push(1);
    stack.push(2);
    io:println("Stack contains ", stack);
    io:println("Number of elements in stack = ", stack.length());
    int item = stack.pop();
    io:println(item, " popped from the stack");
    io:println("Last element is now ", stack[stack.length() - 1]);
    stack.removeAll();
    io:println("Stack cleared");
    io:println("Is stack now empty? ", stack.length() == 0 ? "yes" : "no");
}