// enumerations/SwitchExpression.java

// (c)2021 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// {NewFeature} Since JDK 14

import java.util.*;

public class SwitchExpression {

static int colon(String s) {

var result = switch(s) {

case "i": yield 1;

case "j": yield 2;

case "k": yield 3;

default: yield 0;

};

return result;

}

static int arrow(String s) {

var result = switch(s) {

case "i" -> 1;

case "j" -> 2;

case "k" -> 3;

default -> 0;

};

return result;

}

public static void main(String[] args) {

for(var s: new String[]{"i", "j", "k", "z"})

System.out.format(

"%s %d %d%n", s, colon(s), arrow(s));

}

}

/* Output:

i 1 1

j 2 2

k 3 3

z 0 0

*/