Best Practice to set a variable value(Hard Code) in Entity Class in java

Question

i am trying to set a string value(for variable env) as follows for all the objects:-

public class example{
private String env;
public String getEnv() {
        return env;
    }
public void setEnv(String env) {
        this.env = "IN";
    }
}

is it the right way to Hard code the variable value or any better way to do it.

Thanks.

Answer 1

Create a constants file which contains all the Strings necessary. Make the String public static and final. Then use it in your code

Example: this.env =  ConstantsFile.IN; 

// tomorrow you can change its value to 
"pinnnn" only in the Constants file and not worry 
about changing every other filed that uses "IN" (now "pinnnn" :) ).

This keeps your code clean and reduces dependency.