Here you can find the source of createRealFormat()
public static NumberFormat createRealFormat()
//package com.java2s; /*// w ww .j a v a 2s .co m * R : A Computer Language for Statistical Data Analysis * Copyright (C) 1995, 1996 Robert Gentleman and Ross Ihaka * Copyright (C) 1997--2008 The R Development Core Team * Copyright (C) 2003, 2004 The R Foundation * Copyright (C) 2010 bedatadriven * * 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.text.NumberFormat; public class Main { public static NumberFormat createRealFormat() { NumberFormat format = NumberFormat.getNumberInstance(); format.setMinimumFractionDigits(0); format.setMaximumFractionDigits(14); return format; } }