Unable to replace in String java ?

Question

I am unable to replace part of the substring in my code ? I want to get rid of the unwanted characters but i still get the same output ?

String BusDetails = "ROUTE 3 — CLEARBROOK-UFV GOLINE TO UFV" ;
System.out.println("BusDetails before"+BusDetails);
BusDetails.replaceAll("—", "");
System.out.println("BusDetails After"+BusDetails);
// Output 
BusDetails before ROUTE 3 — CLEARBROOK-UFV GOLINE TO UFV
BusDetails After ROUTE 3 — CLEARBROOK-UFV GOLINE TO UFV

• Manish: you need to assign back the output of BusDetails.replaceAll("—", ""); to BusDetails
• mdewitt: Side note: Make sure you stick to java naming conventions. Variables should start with a lowercase, and class names should start with an uppercase and be CamelCase. So BusDetails should be named busDetails.

Answer 1

Java strings are immutable. You need to do this:

BusDetails = BusDetails.replaceAll("—", "");

Also: "standard practice" is to name variables with a lowercase first letter busDetails.

Answer 2

BusDetails= BusDetails.replaceAll("—", "");

you forgot to re assign variable

Answer 3

You need to put 'replaced value' into another variable. Example below compiled code:

String busDetails = "ROUTE 3 — CLEARBROOK-UFV GOLINE TO UFV" ;
System.out.println("BusDetails before :"+busDetails);
String replacetxt = busDetails.replaceAll("— ", "");
System.out.println("BusDetails After :"+replacetxt);