Java Set Difference computeDifference(Set a, Set b, String prefix, boolean exactMatch)

Description

compute Difference

License

Apache License

Declaration

public static Set<String> computeDifference(Set<String> a,
            Set<String> b, String prefix, boolean exactMatch) 

Method Source Code

//package com.java2s;
/*//from  www.j av  a2 s .c o  m
 * Copyright 2005-2009 the original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.HashSet;
import java.util.Iterator;

import java.util.Set;

public class Main {
    public static Set<String> computeDifference(Set<String> a,
            Set<String> b, String prefix, boolean exactMatch) {
        Set<String> overlap = new HashSet<String>();
        for (Iterator<String> it = a.iterator(); it.hasNext();) {
            String code = it.next();
            if (!exactMatch && code.startsWith(prefix))
                if (!b.contains(code))
                    overlap.add(code);
            if (exactMatch)
                if (!b.contains(code))
                    overlap.add(code);
        }
        return overlap;
    }
}

Related

1. diffAbyB(Set setA, Set setB)
2. difference(final Set set1, final Set set2)
3. difference(final Set first, final Set second)
4. difference(Set a, Set b)