Copy elements from src Collection to dest Collection. - Android java.util

Description

Copy elements from src Collection to dest Collection.

Demo Code

//package com.book2s;
import java.util.Collection;

public class Main {
    public static void main(String[] argv) {
        Collection src = java.util.Arrays.asList("asdf", "book2s.com");
        Collection dest = java.util.Arrays.asList("asdf", "book2s.com");
        boolean clearDestination = true;
        copyElements(src, dest, clearDestination);
    }/*from   w w  w . j a v  a2s  .c o m*/

    /** Copy elements from src to dest.
     * 
     * @param src - Collection containing data to be copied.
     * @param dest - Collection to have the data copied to.
     * @param clearDestination - whether to clear all contents from destination prior to copying.
     */
    public static <T> void copyElements(Collection<? extends T> src,
            Collection<? super T> dest, boolean clearDestination) {
        if (clearDestination) {
            dest.clear();
        }
        for (T t : src) {
            dest.add(t);
        }
    }
}

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