Example usage for java.lang String toCharArray

Introduction

In this page you can find the example usage for java.lang String toCharArray.

Prototype

public char[] toCharArray() 

Source Link

Document

Converts this string to a new character array.

Usage

From source file:Main.java

public static long getRunningProcess() {

    File file = new File("/proc/meminfo");
    BufferedReader bufferedReader = null;
    String total = null;//from   w w w .j  a  v  a 2s  .  co m
    try {
        bufferedReader = new BufferedReader(new FileReader(file));
        String line = bufferedReader.readLine();
        char[] charArray = line.toCharArray();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < charArray.length; i++) {
            char c = charArray[i];
            if (c >= '0' && c <= '9') {
                sb.append(c);
            }
        }
        total = sb.toString();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    long number = Long.parseLong(total) * 1024;
    return number;
}

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From source file:Main.java

public static String toLowerCase(String strSrc) {
    if (TextUtils.isEmpty(strSrc)) {
        return strSrc;
    }/*from www  .ja v  a 2s .  c  om*/
    char[] chars = strSrc.toCharArray();
    if (chars == null) {
        return strSrc;
    }
    for (int i = 0; i < chars.length; i++) {
        char c = chars[i];
        if ('A' <= c && c <= 'Z') {
            chars[i] = (char) (c + 'a' - 'A');
        }
    }
    return String.valueOf(chars);
}

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From source file:Main.java

/**
 * Return a valid element name from the given string.
 *
 * <p>Letters are put to lower case and other characters are replaced by hyphens.
 * If the first character is not a letter it is replaced by 'x'.
 *
 * @param name The candidate element name
 *
 * @return A valid element name/*from  ww  w  . j av a 2 s.c  om*/
 */
public static String toElementName(String name) {
    if (name == null)
        return null;
    char[] elementAsChars = name.toCharArray();
    if (!Character.isLetter(elementAsChars[0])) {
        elementAsChars[0] = 'x';
    } else {
        elementAsChars[0] = Character.toLowerCase(elementAsChars[0]);
    }
    for (int i = 1; i < elementAsChars.length; i++) {
        if (!Character.isLetter(elementAsChars[i])) {
            elementAsChars[i] = '-';
        } else {
            elementAsChars[i] = Character.toLowerCase(elementAsChars[i]);
        }
    }
    return new String(elementAsChars);
}

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From source file:Main.java

public static String FormatBarCode(String barCode) {
    if (barCode.length() == 13) {
        Log.i("msg", "barcodeLength==13");
        char[] temp = barCode.toCharArray();
        return temp[0] + " " + temp[1] + temp[2] + temp[3] + temp[4] + temp[5] + temp[6] + " " + temp[7]
                + temp[8] + temp[9] + temp[10] + temp[11] + temp[12];
    }//w  w w. j  a  v a2 s . c o m
    Log.i("msg", "barcodeLength!=13");
    return barCode;
}

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From source file:Main.java

public static byte hexStringToByte(String hex) {
    byte result;/* w  ww.ja  v a2s . co  m*/
    if (hex.length() == 1) {
        hex = "0" + hex;
    }
    char[] achar = hex.toCharArray();
    result = (byte) (toByte(achar[0]) << 4 | toByte(achar[1]));
    return result;
}

---

From source file:Main.java

/**
 * decode Unicode string/*from   ww w. j  a va 2s  .  c o  m*/
 *
 * @param s s
 * @return string
 */
public static String decodeUnicodeStr(String s) {
    StringBuilder sb = new StringBuilder(s.length());
    char[] chars = s.toCharArray();
    for (int i = 0; i < chars.length; i++) {
        char c = chars[i];
        if (c == '\\' && chars[i + 1] == 'u') {
            char cc = 0;
            for (int j = 0; j < 4; j++) {
                char ch = Character.toLowerCase(chars[i + 2 + j]);
                if ('0' <= ch && ch <= '9' || 'a' <= ch && ch <= 'f') {
                    cc |= (Character.digit(ch, 16) << (3 - j) * 4);
                } else {
                    cc = 0;
                    break;
                }
            }
            if (cc > 0) {
                i += 5;
                sb.append(cc);
                continue;
            }
        }
        sb.append(c);
    }
    return sb.toString();
}

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From source file:Main.java

public static byte[] hexStringToByte(String aMessage) {
    int i = aMessage.length() / 2;
    byte[] arrayOfByte = new byte[i];
    char[] arrayOfChar = aMessage.toCharArray();
    for (int j = 0; j < i; j++) {
        int k = j * 2;
        arrayOfByte[j] = ((byte) (toByte(arrayOfChar[k]) << 4 | toByte(arrayOfChar[(k + 1)])));
    }//from ww  w  . j  av  a  2s .  c o  m
    return arrayOfByte;
}

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From source file:ASCII2NATIVE.java

/**    
 * Native to ascii string. It's same as execut native2ascii.exe.    
 *     //from   w ww .j  a v  a  2  s . c  om
 * @param str    
 *            native string    
 * @return ascii string    
 */
public static String native2Ascii(String str) {
    char[] chars = str.toCharArray();
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < chars.length; i++) {
        sb.append(char2Ascii(chars[i]));
    }
    return sb.toString();
}

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From source file:Main.java

/**
 * get total size of ram. Work for all API levels.
 * @return total size in byte/*w  w  w .  j av a  2 s.  c o  m*/
 * @deprecated
 */
public static long getTotalRamSize() {
    StringBuilder sb = new StringBuilder();
    //read this file and pick up numbers
    File file = new File("/proc/meminfo");
    BufferedReader br = null;
    try {
        br = new BufferedReader(new FileReader(file));
        String readLine = br.readLine();
        char[] charArray = readLine.toCharArray();
        for (char c : charArray) {
            if (c >= '0' && c <= '9') {
                sb.append(c);
            }
        }
        String string = sb.toString();
        long parseLong = Long.parseLong(string);
        return parseLong * 1024;
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return 0;
}

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From source file:Main.java

public static String checkAndChangeDataHexa(String sInput) {
    String CheckedAndChangedValue = "";
    sInput = sInput.toUpperCase();/*from ww  w .  j ava2 s.  c o  m*/
    char[] cInput = sInput.toCharArray();

    for (int i = 0; i < sInput.length(); i++) {
        if (cInput[i] == '0' || cInput[i] == '1' || cInput[i] == '2' || cInput[i] == '3' || cInput[i] == '4'
                || cInput[i] == '5' || cInput[i] == '6' || cInput[i] == '7' || cInput[i] == '8'
                || cInput[i] == '9' || cInput[i] == 'A' || cInput[i] == 'B' || cInput[i] == 'C'
                || cInput[i] == 'D' || cInput[i] == 'E' || cInput[i] == 'F') {
            CheckedAndChangedValue += cInput[i];
        }
    }
    return CheckedAndChangedValue;
}

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