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BalancedPara.java
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BalancedPara.java
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import java.util.*;
public class BalancedPara
{
public static boolean isBalanced(String expr)
{
Deque<Character> stack = new ArrayDeque<>();
for(int i=0; i<expr.length(); i++)
{
char x=expr.charAt(i);
if(x=='[' || x=='{' || x=='(')
{
stack.push(x);
continue;
}
if(stack.isEmpty())
return false;
char y;
switch(x)
{
case ')':
y=stack.pop();
if( y!='(')
return false;
break;
case '}':
y=stack.pop();
if (y!='{')
return false;
break;
case ']':
y=stack.pop();
if(y!='[')
return false;
break;
}
}
return stack.isEmpty();
}
public static void main(String[] args)
{
String expr ="([{}])";
if(BalancedPara.isBalanced(expr))
System.out.println("Balanced");
else
System.out.println("UnBalanced");
}
}