'Short|quick int values comparison
I learned about terminary expression, but what I want is a little different.
I have the following:
int MODE = getMyIntValue();
I do comparison as the following:
if(MODE == 1 || MODE == 2 || MODE == 3) //do something
I would like to know if there is a short way of doing this, I tried something like this but it didn't work:
if(MODE == 1 || 2 || 3) //do something
There is a short|quick way of doing it? I like quick "ifs" because it makes the code more clear, for example, it is more clear this:
System.out.println(MODE == 1 ? text1 : text2):
Than this:
if(MODE == 1) System.out.println(text1):
else System.out.println(text1):
Thanks in advance!
Solution 1:[1]
May be you can do something like this
System.out.println(Mode == 1 ? "1" : Mode == 2 ? "2" : "3");
switch-case also makes code more readable than multiple if-else
Solution 2:[2]
I strongly recommend to use a more typed approach:
public class QuickIntSample {
enum Modes {
ONE(1),TWO(2),THREE(3); // you may choose more useful and readable names
int code;
private Modes(int code) {
this.code = code;
}
public static Modes fromCode(final int intCode) {
for (final Modes mode : values()) {
if (mode.code == intCode) {
return mode;
}
}
return null;
}
} // -- END of enum
public static void main(String[] args) {
int mode = 2;
if( Modes.fromCode(mode) == Modes.TWO ) {
System.out.println("got code 2");
}
}
}
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | csn |
| Solution 2 | halfer |
