Returns an unmodifiable view of the specified list. - Java java.util

Java examples for java.util:List Operation

  1. HOME
  2. Java
  3. java.util
  4. List Operation

Description

Returns an unmodifiable view of the specified list.

Demo Code


//package com.java2s;
import java.util.Collections;
import java.util.List;

public class Main {
    public static void main(String[] argv) {
        List list = java.util.Arrays.asList("asdf", "java2s.com");
        System.out.println(unmodifiableList(list));
    }/*  w  ww  .  ja  v  a2s . c  o  m*/

    /**
     * 
     * Returns an unmodifiable view of the specified list. This method makes use
     * of the method unmodifiableList of java.util.Collections and returns an
     * empty list if the provided list is null.
     * 
     * @param list
     * @return
     * @see java.util.Collections.unmodifiableList
     */
    public static <T> List<T> unmodifiableList(List<? extends T> list) {
        if (list == null) {
            return Collections.emptyList();
        } else {
            return Collections.unmodifiableList(list);
        }
    }
}

Related Tutorials