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 byte[] fromHexString(String hexString) {
    char[] chars = hexString.toCharArray();
    byte[] result = new byte[chars.length / 2];
    for (int i = 0; i < result.length; i++) {
        char c = chars[2 * i];
        int a = ((Character.isDigit(c) ? c - '0' : c - 'A' + 10) << 4) & 0xF0;
        c = chars[2 * i + 1];// w  w w  .  j av a2 s  .  c om
        int b = (Character.isDigit(c) ? c - '0' : c - 'A' + 10) & 0x0F;
        result[i] = (byte) ((a | b) & 0xFF);
    }
    return result;
}

From source file:Main.java

public static byte[] decodeHexString(String arg) throws DecoderException {
    return Hex.decodeHex(arg.toCharArray());
}

From source file:Main.java

public static String replaceString(String paramString, int paramInt) {
    char[] arrayOfChar = paramString.toCharArray();
    int i = paramString.length();
    for (int j = 0;; j++) {
        if (j >= paramInt)
            return String.valueOf(arrayOfChar);
        arrayOfChar[(-5 + (i - j))] = '*';
    }//from w w  w  .j  a  va2  s.c om
}

From source file:Main.java

public static String toASCIILowerCase(String string) {
    char[] charArray = string.toCharArray();
    StringBuilder sb = new StringBuilder(charArray.length);
    for (int index = 0; index < charArray.length; index++) {
        if ('A' <= charArray[index] && charArray[index] <= 'Z') {
            sb.append((char) (charArray[index] + ('a' - 'A')));
        } else {/*from   w  w  w  .j a v a 2s  .  co  m*/
            sb.append(charArray[index]);
        }
    }
    return sb.toString();
}

From source file:Main.java

public static String toASCIIUpperCase(String string) {
    char[] charArray = string.toCharArray();
    StringBuilder sb = new StringBuilder(charArray.length);
    for (int index = 0; index < charArray.length; index++) {
        if ('a' <= charArray[index] && charArray[index] <= 'z') {
            sb.append((char) (charArray[index] - ('a' - 'A')));
        } else {//from w w  w  .j a v a 2  s.c o m
            sb.append(charArray[index]);
        }
    }
    return sb.toString();
}

From source file:Main.java

public static byte[] toBytes(String s) {
    return toBytes(s.toCharArray());
}

From source file:Main.java

public static char getLargestDigit(String numStr) {
    char largest = '0';
    for (char c : numStr.toCharArray()) {
        if (c > largest)
            largest = c;//from  ww  w  .  java 2 s .  c  o  m
    }

    return largest;
}

From source file:Main.java

public static char getSmallerDigit(String numStr) {
    char smallest = '9';
    for (char c : numStr.toCharArray()) {
        if (c < smallest)
            smallest = c;/*  w w w  .j  av a  2  s . co  m*/
    }

    return smallest;
}

From source file:Main.java

public static int getChineseNum(String s) {

    int num = 0;/*from   ww  w .  java 2 s.c om*/
    char[] myChar = s.toCharArray();
    for (int i = 0; i < myChar.length; i++) {
        if ((char) (byte) myChar[i] != myChar[i]) {
            num++;
        }
    }
    return num;
}

From source file:Main.java

public static String replace(String string, char oldchar, char newchar) {
    char chars[] = string.toCharArray();
    for (int w = 0; w < chars.length; w++) {
        if (chars[w] == oldchar) {
            chars[w] = newchar;//  w w  w.ja v a 2 s  . c  o  m
            break;
        }
    }
    return new String(chars);
}