Here you can find the source of convertNanoDiff(long startNanos, long stopNanos, TimeUnit timeUnit)
public static BigDecimal convertNanoDiff(long startNanos, long stopNanos, TimeUnit timeUnit)
//package com.java2s; /*/*from w ww . j av a2 s . c om*/ * Copyright 2014 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.math.BigDecimal; import java.util.concurrent.TimeUnit; public class Main { public static BigDecimal convertNanoDiff(long startNanos, long stopNanos, TimeUnit timeUnit) { BigDecimal diffNanos = new BigDecimal(stopNanos - startNanos); return diffNanos.divide(BigDecimal.valueOf(timeUnit.toNanos(1))); } }