Here you can find the source of toAsciiChar(byte b)
public static char toAsciiChar(byte b)
//package com.java2s; /* //from w w w .j ava 2s . c o m * Copyright 2003,2004 Peter Lee, Colin Crist * * 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 char toAsciiChar(byte b) { char c = (char) b; return Character.isISOControl(c) ? '.' : c; } }