Here you can find the source of getCalendarFieldName(int field)
public static String getCalendarFieldName(int field)
//package com.java2s; /*//from w ww. ja v a2 s. c om * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.Calendar; public class Main { public static String getCalendarFieldName(int field) { switch (field) { case Calendar.DAY_OF_MONTH: return "DAY_OF_MONTH"; case Calendar.DAY_OF_WEEK: return "DAY_OF_WEEK"; case Calendar.DAY_OF_YEAR: return "DAY_OF_YEAR"; case Calendar.HOUR: return "HOUR"; case Calendar.MINUTE: return "MINUTE"; case Calendar.SECOND: return "SECOND"; default: throw new IllegalArgumentException("Unknown field code: " + field); } } }