to Hex String - Java java.lang

Java examples for java.lang:String Hex

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Description

to Hex String

Demo Code

/*/*from   w w w  .  ja  v  a  2  s.c  om*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
//package com.java2s;

public class Main {
    public static final int UNI_SUR_HIGH_START = 0xD800;
    public static final int UNI_SUR_HIGH_END = 0xDBFF;
    public static final int UNI_SUR_LOW_START = 0xDC00;
    public static final int UNI_SUR_LOW_END = 0xDFFF;

    public static String toHexString(String s) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < s.length(); i++) {
            char ch = s.charAt(i);
            if (i > 0) {
                sb.append(' ');
            }
            if (ch < 128) {
                sb.append(ch);
            } else {
                if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END) {
                    sb.append("H:");
                } else if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END) {
                    sb.append("L:");
                } else if (ch > UNI_SUR_LOW_END) {
                    if (ch == 0xffff) {
                        sb.append("F:");
                    } else {
                        sb.append("E:");
                    }
                }

                sb.append("0x" + Integer.toHexString(ch));
            }
        }
        return sb.toString();
    }
}

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