Android String Replace replace(String s, char oldSub, char newSub)

Here you can find the source of replace(String s, char oldSub, char newSub)

Description

replace

License

Apache License

Declaration

public static String replace(String s, char oldSub, char newSub) 

Method Source Code

//package com.java2s;
/**//from   w  ww . j a v a2 s.c  om
 * Copyright 2013 ??????
 *
 * 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 final String EMPTY = "";

    public static String replace(String s, char oldSub, char newSub) {
        return replace(s, oldSub, Character.valueOf(newSub));
    }

    public static String replace(String s, char oldSub, String newSub) {
        if ((s == null) || (newSub == null)) {
            return null;
        }

        char[] c = s.toCharArray();

        StringBuffer sb = new StringBuffer();

        for (int i = 0; i < c.length; i++) {
            if (c[i] == oldSub) {
                sb.append(newSub);
            } else {
                sb.append(c[i]);
            }
        }

        return sb.toString();
    }

    public static String replace(String s, String oldSub, String newSub) {
        if ((s == null) || (oldSub == null) || (newSub == null)) {
            return null;
        }

        int y = s.indexOf(oldSub);

        if (y >= 0) {
            StringBuffer sb = new StringBuffer();
            int length = oldSub.length();
            int x = 0;

            while (x <= y) {
                sb.append(s.substring(x, y));
                sb.append(newSub);
                x = y + length;
                y = s.indexOf(oldSub, x);
            }

            sb.append(s.substring(x));

            return sb.toString();
        } else {
            return s;
        }
    }

    public static String replace(String s, String[] oldSubs,
            String[] newSubs) {
        if ((s == null) || (oldSubs == null) || (newSubs == null)) {
            return null;
        }

        if (oldSubs.length != newSubs.length) {
            return s;
        }

        for (int i = 0; i < oldSubs.length; i++) {
            s = replace(s, oldSubs[i], newSubs[i]);
        }

        return s;
    }

    public static String replace(String s, String[] oldSubs, char[] newSubs) {
        if ((s == null) || (oldSubs == null) || (newSubs == null)) {
            return null;
        }

        if (oldSubs.length != newSubs.length) {
            return s;
        }

        for (int i = 0; i < oldSubs.length; i++) {
            s = replace(s, oldSubs[i], String.valueOf(newSubs[i]));
        }
        return s;
    }

    public static String substring(String str, int beginIndex) {
        if (str == null) {
            return null;
        }

        if (beginIndex < 0) {
            return EMPTY;
        }

        if (beginIndex > str.length()) {
            return EMPTY;
        }

        return str.substring(beginIndex);
    }

    public static String substring(String str, int beginIndex, int endIndex) {
        if (str == null) {
            return null;
        }

        if (beginIndex < 0 || endIndex < 0) {
            return EMPTY;
        }

        if (endIndex > str.length()) {
            endIndex = str.length();
        }

        if (beginIndex > endIndex || beginIndex > str.length()) {
            return EMPTY;
        }

        return str.substring(beginIndex, endIndex);
    }
}

Related

  1. replaceBlank(String str)
  2. replaceBlank(String str)
  3. removeIllegal(String input)
  4. replace(String s, String[] oldSubs, char[] newSubs)
  5. replace(String s, char oldSub, String newSub)
  6. replace(String source, CharSequence target, CharSequence replacement)
  7. replaceChar(String source, String subject, String object)
  8. replaceSpaceCharacter(String string)
  9. collapse(String str, String chars, String replacement)