return int void error

GeorgeJava

WHY pls help me :( iam very said

void setup(){
  println(getTileID("grass"));
}

int getTileID(String name) {
  int id = 0;
 if (name.equals("stone")) {
     id = 41;
  } else if (name.equals("grass")) {
     id = 10;
  } else if (name.equals("wood")) {
     id = 23;
  } else {
    id = 0;
  }
  return id;
}

TfGuy44

Prints 10 for me. And id 10 is grass. So... what's the problem?

jeremydouglass

Works fine for me. Prints:

10

GeorgeJava

yes it is my mystake on my game i have null value on String :D

GoToLoop

If 1 of the strings you wanna compare is a literal "", use that to invoke the method equals(), for the obvious reason a String literal is never a null: *-:)

else if ( "grass".equals(name) ) { return 10; }

A switch () / case: block is another excellent option:
https://Processing.org/reference/switch.html

An IntDict container and even enums: :-bd
https://Processing.org/reference/IntDict.html
https://Docs.Oracle.com/javase/tutorial/java/javaOO/enum.html

Chrisir

i have null value on string

you can check for null:

int getTileID(String name) {

if(name==null) return -1; // error / unknown

int id=0;

if ......