Method replace

lib/java/lang/String.java:1291–1303

Copies this string replacing occurrences of the specified character with another character. @param oldChar the character to replace. @param newChar the replacement character. @return a new string with occurrences of oldChar replaced by newChar.

(char oldChar, char newChar)

     * @return a new string with occurrences of oldChar replaced by newChar.
     */
    public String replace(char oldChar, char newChar) {
        int index = indexOf(oldChar, 0);
        if (index == -1) {
            return this;
        }

        char[] buffer = new char[count];
        System.arraycopy(value, offset, buffer, 0, count);
        do {
            buffer[index++] = newChar;
        } while ((index = indexOf(oldChar, index)) != -1);
        return new String(0, count, buffer);
    }
    
    /**
     * Copies this string replacing occurrences of the specified target sequence