Java tutorial
/* * Copyright 2017 Ruslan_<<RUS_M>>. * * 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. */ package rus.cpuinfo.Util; import android.support.annotation.NonNull; import com.google.common.base.Preconditions; import org.apache.commons.lang3.math.NumberUtils; import java.util.Locale; public class ConverterUtil { @NonNull public static String convertFromKHzToMHz(final String KHz) { Preconditions.checkArgument(NumberUtils.isCreatable(KHz), "KHz must be a numeric value"); return String.format(Locale.getDefault(), "%d", convertFromKHzToMHz(Integer.parseInt(KHz))); } public static int convertFromKHzToMHz(final int KHz) { Preconditions.checkArgument(KHz > 0, "KHz must be greater than zero"); return KHz / 1000; } }