Java Collection Combine combineAndRemoveDuplicates(Collection collection1, Collection collection2)

Description

combine And Remove Duplicates

License

Open Source License

Declaration

public static <T> Collection<T> combineAndRemoveDuplicates(Collection<T> collection1,
            Collection<T> collection2) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;
import java.util.Collection;

public class Main {
    public static <T> Collection<T> combineAndRemoveDuplicates(Collection<T> collection1,
            Collection<T> collection2) {
        Collection<T> merged;

        try {//from  w  ww .  j av  a 2s. c o  m
            merged = collection1.getClass().newInstance();
        } catch (Exception ex) {
            merged = new ArrayList<T>();
        }

        merged.addAll(collection1);
        merged.addAll(collection2);

        Collection<T> output;

        try {
            output = collection1.getClass().newInstance();
        } catch (Exception ex) {
            output = new ArrayList<T>();
        }

        for (T val : merged) {
            if (!output.contains(val)) {
                output.add(val);
            }
        }

        return output;
    }
}

Related

1. combine(Collection strings)
2. combine(final Collection[] c)
3. combine(String separator, Collection parts)
4. combine(String separator, Collection stringCollection)
5. combine(String separator, Collection objs)
6. combineCollections(Collection sessionCollection, Collection reqCollection)
7. CombineCollections(final Collection... collections)
8. combineNames(Collection