public static void main(String[] args) {
MyStack stack = new MyStack();
stack.push(5);
stack.push(6);
stack.push(9);
stack.push(3);
stack.push(8);
stack.push(1);
while (!stack.isEmpty()) {
int min = stack.min();
int value = stack.pop();
System.out.println("Pop value: " + value + ", current min: " + min);
}
}
public static void main(String[] args) throws Exception {
MyStack stack = new MyStack();
Scanner input = new Scanner(new File(args[0]));
try {
while (input.hasNext()) {
String s = input.nextLine();
StringTokenizer tokens = new StringTokenizer(s, "[](){}", true);
while (tokens.hasMoreTokens()) {
String token = tokens.nextToken().trim();
if (token.length() == 0) continue;
else if (token.charAt(0) == '[') {
stack.push(']');
} else if (token.charAt(0) == '{') {
stack.push('}');
} else if (token.charAt(0) == '(') {
stack.push(')');
} else if (token.charAt(0) == ']' || token.charAt(0) == '}' || token.charAt(0) == ')') {
char ch = ((Character) (stack.pop())).charValue();
if (ch != token.charAt(0)) {
System.out.println("Exit 1: Incorrect grouping pairs");
System.exit(0);
}
}
}
}
if (!stack.isEmpty()) {
System.out.println("Exit 2: Incorrect grouping pairs");
System.exit(0);
}
} catch (Exception ex) {
System.out.println("Exit 3: Incorrect grouping pairs");
}
System.out.println("Correct grouping pairs");
}