Using two values for one switch case statement

Question

In my code, the program does something depending on the text entered by the user. My code looks like:

switch (name) {
        case text1: {
            //bla         


        

Answer 1

Java 12 and above

switch (name) {
    case text1, text4 -> // do something ;
    case text2, text3, text 5 -> // do something else ;
    default -> // default case ;
}

You can also assign a value through the switch case expression :

String text = switch (name) {
    case text1, text4 -> "hello" ;
    case text2, text3, text5 -> "world" ;
    default -> "goodbye";
};

"yield" keyword

It allows you to return a value by the switch case expression

String text = switch (name) {
    case text1, text4:
        yield "hello";
    case text2, text3, text5:
        yield "world";
    default:
        yield "goodbye";
};

Answer 2

Just do

case text1: case text4: 
     do stuff;
     break;

Answer 3

Fall through approach is the best one i feel.

case text1:
case text4: {
        //Yada yada
        break;
} 

Answer 4

The case values are just codeless "goto" points that can share the same entry point:

case text1:
case text4: 
    //blah
    break;

Note that the braces are redundant.

Answer 5

The brackets are unnecessary. Just do

case text1:
case text4:
  doSomethingHere();
  break;
case text2:
  doSomethingElse()
  break;

If anyone is curious, this is called a case fallthrough. The ability to do this is the reason why break; is necessary to end case statements. For more information, see the wikipedia article http://en.wikipedia.org/wiki/Switch_statement.

Answer 6

With the integration of JEP 325: Switch Expressions (Preview) in JDK-12 early access builds, one can now make use of the new form of the switch label as :-

case text1, text4 -> {
     //blah
} 

or to rephrase the demo from one of the answers, something like :-

public class RephraseDemo {

    public static void main(String[] args) {
        int month = 9;
        int year = 2018;
        int numDays = 0;

        switch (month) {
            case 1, 3, 5, 7, 8, 10, 12 ->{
                numDays = 31;
            }
            case 4, 6, 9, 11 ->{
                numDays = 30;
            }
            case 2 ->{
                if (((year % 4 == 0) &&
                        !(year % 100 == 0))
                        || (year % 400 == 0))
                    numDays = 29;
                else
                    numDays = 28;
            }
            default ->{
                System.out.println("Invalid month.");

            }
        }
        System.out.println("Number of Days = " + numDays);
    }
}

Here is how you can give it a try - Compile a JDK12 preview feature with Maven