Here you can find the source of toDigit(final int value)
public static char toDigit(final int value)
//package com.java2s; /*//w w w . j a va 2 s.c om * Copyright 2014 Christoph B?hme * * 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 { private static final int RADIX = 10; public static char toDigit(final int value) { assert 0 <= value && value < RADIX; return Character.forDigit(value, RADIX); } }