Here you can find the source of valueOf(float f)
public static Float valueOf(float f)
//package com.java2s; /*/*w ww . ja v a 2 s . c o m*/ * Copyright 2008 Google Inc. * * 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. */ public class Main { public static Float valueOf(float f) { return new Float(f); } public static Float valueOf(String s) throws NumberFormatException { return new Float(s); } }