Scala while(true) type mismatch? Infinite loop in scala?

Question

Why following code

def doSomething() = \"Something\"

var availableRetries: Int = 10

def process(): String = {
  while (true) {
    availableRetries -= 1
    tr         


        

Answer 1

edit: I just noticed the actual return statement. The return statement inside the while loop will be ignored. For example, in the REPL:

scala> def go = while(true){return "hi"}
:7: error: method go has return statement; needs result type
   def go = while(true){return "hi"}
                        ^  

---

You told the compiler that the process() method returns a String, but your method body is just a while loop, which doesn't return anything (it's a Unit, or a Java void). Either change the return type or add a String after the while loop.

def process(): Unit = {
   while(true){...}
}

or

def process(): String = {
  while(true){...}
  "done"
}