Java tutorial
//package com.java2s; /* * Copyright (C) 2009 The Android Open Source Project * * 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. */ import android.util.Log; import java.io.UnsupportedEncodingException; import java.nio.ByteBuffer; import java.nio.charset.Charset; public class Main { private static final String LOG_TAG = "VCardUtils"; public static final String convertStringCharset(String originalString, String sourceCharset, String targetCharset) { if (sourceCharset.equalsIgnoreCase(targetCharset)) { return originalString; } final Charset charset = Charset.forName(sourceCharset); final ByteBuffer byteBuffer = charset.encode(originalString); // byteBuffer.array() "may" return byte array which is larger than // byteBuffer.remaining(). Here, we keep on the safe side. final byte[] bytes = new byte[byteBuffer.remaining()]; byteBuffer.get(bytes); try { return new String(bytes, targetCharset); } catch (UnsupportedEncodingException e) { Log.e(LOG_TAG, "Failed to encode: charset=" + targetCharset); return null; } } }