52 lines
1.2 KiB
Java
52 lines
1.2 KiB
Java
// enums/EnumClass.java
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// (c)2021 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// Capabilities of the Enum class
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enum Shrubbery { GROUND, CRAWLING, HANGING }
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public class EnumClass {
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public static void main(String[] args) {
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for(Shrubbery s : Shrubbery.values()) {
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System.out.println(
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s + " ordinal: " + s.ordinal());
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System.out.print(
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s.compareTo(Shrubbery.CRAWLING) + " ");
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System.out.print(
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s.equals(Shrubbery.CRAWLING) + " ");
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System.out.println(s == Shrubbery.CRAWLING);
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System.out.println(s.getDeclaringClass());
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System.out.println(s.name());
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System.out.println("********************");
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}
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// Produce an enum value from a String name:
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for(String s :
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"HANGING CRAWLING GROUND".split(" ")) {
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Shrubbery shrub =
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Enum.valueOf(Shrubbery.class, s);
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System.out.println(shrub);
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}
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}
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}
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/* Output:
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GROUND ordinal: 0
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-1 false false
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class Shrubbery
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GROUND
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********************
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CRAWLING ordinal: 1
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0 true true
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class Shrubbery
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CRAWLING
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********************
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HANGING ordinal: 2
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1 false false
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class Shrubbery
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HANGING
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********************
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HANGING
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CRAWLING
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GROUND
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*/
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