Optimizations

[midhunpg]

LearnJava/CodingJava/src/main/java/BalancedParanthesis.java

There is no need for the isContinue variable.
Return false whenever you find that the parenthesis is not matching. peek() is not required. can use pop() directly.
The return type of method1() can be changed to boolean. In cases where a closing parenthesis is encountered,

.......................
case '}':
if(!stack.isEmpty()&stack.pop()!='{'){
return false;
}
break;
.....................

return true after the switch block,