Here you can find the source of load(Properties props, File file)
public static void load(Properties props, File file) throws IOException
//package com.java2s; /*// w w w. jav a 2 s. c o m * Copyright (C) 2015 Luke Melaia * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.util.Properties; public class Main { public static void load(Properties props, File file) throws IOException { try (InputStream reader = new FileInputStream(file)) { props.load(reader); reader.close(); } } }