Here you can find the source of toCVS(Set
public static String toCVS(Set<Integer> buildRecordSetIds)
//package com.java2s; /**// w w w .j a v a 2 s . c o m * JBoss, Home of Professional Open Source. * Copyright 2014 Red Hat, Inc., and individual contributors * as indicated by the @author tags. * * 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.Set; import java.util.StringJoiner; public class Main { public static String toCVS(Set<Integer> buildRecordSetIds) { StringJoiner joiner = new StringJoiner(","); buildRecordSetIds.forEach(el -> joiner.add(el.toString())); return joiner.toString(); } }