Example of EnumSet in Java
May 31, 2013
EnumSet is a Set in Java to store enum. Enum must be of one enum type. Null elements are not permitted. EnumSet can be synchronized as below.
Set<TestEnum> s = Collections.synchronizedSet(EnumSet.noneOf(TestEnum.class));
EnumSetDemo.java
package com.concretepage.util;
import java.util.EnumSet;
import java.util.Iterator;
public class EnumSetDemo {
public static void main(String[] args) {
EnumSet<TestEnum> enSet = EnumSet.of(TestEnum.A, TestEnum.B, TestEnum.C, TestEnum.D);
Iterator<TestEnum> ite = enSet.iterator();
while(ite.hasNext()){
System.out.println(ite.next());
}
}
}
enum TestEnum {
A, B, C, D;
}
