I have a enum defined like this and I would like to be able to obtain the strings for the individual statuses. How should I write such a method?
I can get the int values of the statuses but would like the option of getting the string values from the ints as well.
public enum Status {
PAUSE(0),
START(1),
STOP(2);
private final int value;
private Status(int value) {
this.value = value
}
public int getValue() {
return value;
}
}
if status is of type Status enum, status.name() will give you its defined name.
You can use values() method:
For instance Status.values()[0] will return PAUSE in your case, if you print it, toString() will be called and "PAUSE" will be printed.
Use default method name() as given bellows
public enum Category {
ONE("one"),
TWO ("two"),
THREE("three");
private final String name;
Category(String s) {
name = s;
}
}
public class Main {
public static void main(String[] args) throws Exception {
System.out.println(Category.ONE.name());
}
}
You can add this method to your Status enum:
public static String getStringValueFromInt(int i) {
for (Status status : Status.values()) {
if (status.getValue() == i) {
return status.toString();
}
}
// throw an IllegalArgumentException or return null
throw new IllegalArgumentException("the given number doesn't match any Status.");
}
public static void main(String[] args) {
System.out.println(Status.getStringValueFromInt(1)); // OUTPUT: START
}
I believe enum have a .name() in its API, pretty simple to use like this example:
private int security;
public String security(){ return Security.values()[security].name(); }
public void setSecurity(int security){ this.security = security; }
private enum Security {
low,
high
}
With this you can simply call
yourObject.security()
and it returns high/low as String, in this example
You can use custom values() method:
public enum SortType { Scored, Lasted;
public int value(){
return this == Lasted ? 1:0;
}
}