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BalancedParentheses.java
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57 lines (48 loc) · 1.71 KB
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package InfinityJune21.Stacks;
import java.util.Stack;
public class BalancedParentheses {
public static boolean checkIfBalanced(String brackets) {
Stack<Character> stack = new Stack<Character>();
for(int i = 0; i < brackets.length(); i++) {
char bracket = brackets.charAt(i);
if(bracket == '(' || bracket == '{' || bracket == '[') {
stack.push(bracket);
}
else if(bracket == ')' || bracket == '}' || bracket == ']') {
if(stack.isEmpty()) {
return false;
}
char bracketFromStack = stack.pop();
switch (bracket) {
case ')':
if(bracketFromStack == '{' || bracketFromStack == '[') {
return false;
}
break;
case '}':
if(bracketFromStack == '(' || bracketFromStack == '[') {
return false;
}
break;
case ']':
if(bracketFromStack == '{' || bracketFromStack == '(') {
return false;
}
break;
}
}
else {
}
}
return stack.isEmpty();
}
public static void main(String[] args) {
String brackets = "[{14(ABC)qwe}]]";
if(checkIfBalanced(brackets)) {
System.out.println("Balanced");
}
else {
System.out.println("Not Balanced");
}
}
}