How to try a true or false syntax in java

Question

I have the fallowing code

while (b == true){
      System.out.print("input the account balance without tax: ");
      int inner = input.nextInt();
      List[x]=inner;
      x=x+1;
}

and I want to check if my user inputs a word it would do:

b =false

So I would exit this loop. In python we had try() and except. I don't really know what to do in java.

Answer 1

I think you want to change

while (b == true){

to use Scanner.hasNextInt() like

while (input.hasNextInt()){

Answer 2

If you must do a while(true) statement, which isn't good programming practice, the final code snippet would look something like this,

boolean someCondition = true;
while(true){

    if(someCondition == false){

      break;

    }

 //and here you would put something that would make that check condition eventual 
 //false to break the loop

}

This is prone too error but would work for your purposes.

That being said, the answer Elliot gave is the correct one and worth considering.