Example usage for java.lang Character isWhitespace

Introduction

In this page you can find the example usage for java.lang Character isWhitespace.

Prototype

public static boolean isWhitespace(int codePoint)

Source Link

Document

Determines if the specified character (Unicode code point) is white space according to Java.

Usage

From source file:Main.java

/**
 * Checks if a node value is blank (contains only white spaces).
 * //  w  ww .  j  a va  2s .co  m
 * @param value
 *            The value to check
 * @return false if the value is null or a non white space character is
 *         found
 */
public static boolean isBlank(String value) {
    if (value == null) {
        return false;
    }

    for (int i = 0; i < value.length(); i++) {
        char c = value.charAt(i);
        if (!Character.isWhitespace(c)) {
            return false;
        }
    }

    return true;
}

From source file:Main.java

/** Returns whitespace-separated strings from the input stream, or null if the end of the stream has been reached */
public static String readToken(InputStream in) {
    StringBuilder sb = new StringBuilder();
    boolean first = true;
    int ch;// www.  j av a  2 s .  c o  m
    while (true) {
        try {
            ch = in.read();
            if (ch == -1)
                return sb.length() > 0 ? sb.toString() : null;
            if (Character.isWhitespace(ch)) {
                if (first)
                    continue;
                break;
            }
            sb.append((char) ch);
            first = false;
        } catch (IOException e) {
            break;
        }
    }
    return sb.toString();
}

From source file:Main.java

public static boolean isBlank(String str) {
    int strLen;//w  w w. jav  a2 s.c o  m

    if ((str == null) || ((strLen = str.length()) == 0)) {
        return true;
    }

    for (int i = 0; i < strLen; i++) {
        if ((Character.isWhitespace(str.charAt(i)) == false)) {
            return false;
        }
    }

    return true;
}

From source file:Main.java

/**
 * used in character() method of DefaultHandler subclasses to skip carriage
 * return type data//from  www.ja  v a 2s.  com
 * 
 * @param data
 * @param start
 * @param length
 * @return
 */
public static boolean isWhiteSpace(char[] data, int start, int length) {
    boolean result = true;
    for (int i = 0; i < length; i++) {
        if (!Character.isWhitespace(data[start + i])) {
            result = false;
            break;
        }
    }
    return result;
}

From source file:Main.java

public static boolean isWhitespace(String s) {
    if (s == null)
        return false;

    for (char c : s.toCharArray()) {
        if (!Character.isWhitespace(c)) {
            return false;
        }//from   www.j  a va 2 s .  co  m
    }

    return true;
}

From source file:Main.java

/**
 * Check whether the given CharSequence contains any whitespace characters.
 *
 * @param seq the CharSequence to check (may be {@code null})
 * @return {@code true} if the CharSequence is not empty and
 * contains at least 1 whitespace character
 * @see java.lang.Character#isWhitespace
 * @since 3.0/*ww  w.ja  v  a2 s. com*/
 */
// From org.springframework.util.StringUtils, under Apache License 2.0
public static boolean containsWhitespace(final CharSequence seq) {
    if (isEmpty(seq)) {
        return false;
    }
    final int strLen = seq.length();
    for (int i = 0; i < strLen; i++) {
        if (Character.isWhitespace(seq.charAt(i))) {
            return true;
        }
    }
    return false;
}

From source file:Main.java

public static int getLeadingWhitespaceEnd(String string, int charStart, int charEnd) {
    for (int i = charStart; i < charEnd; i++) {
        if (!Character.isWhitespace(string.charAt(i))) {
            return i;
        }/*from   ww  w .ja v  a 2  s . c  om*/
    }

    return charEnd;
}

From source file:Main.java

public static int getTrailingWhitespaceStart(String string, int charStart, int charEnd) {
    for (int i = charEnd - 1; i >= charStart; i--) {
        if (!Character.isWhitespace(string.charAt(i))) {
            return i + 1;
        }/*from  w w  w. ja va  2s  .  c om*/
    }

    return charStart;
}

From source file:Main.java

/**
 * <p>//w  w  w . ja  va2 s  .c  o  m
 * Checks if a String is whitespace, empty ("") or null.
 * </p>
 * <p>
 * <pre>
 *   StringUtils.isBlank(null)                = true
 *   StringUtils.isBlank(&quot;&quot;)        = true
 *   StringUtils.isBlank(&quot; &quot;)       = true
 *   StringUtils.isBlank(&quot;bob&quot;)     = false
 *   StringUtils.isBlank(&quot;  bob  &quot;) = false
 * </pre>
 *
 * @param str the String to check, may be null
 * @return <code>true</code> if the String is null, empty or whitespace
 */
public static boolean isBlank(String str) {
    int strLen;
    if (str == null || (strLen = str.length()) == 0) {
        return true;
    }
    for (int i = 0; i < strLen; i++) {
        if ((!Character.isWhitespace(str.charAt(i)))) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

public static boolean isAllWhitespace(String string) {
    if (string == null) {
        return false;
    }/*from w  w  w  .j av a2  s.  c  o  m*/
    char[] characters = string.toCharArray();
    for (int i = 0; i < characters.length; i++) {
        if (!Character.isWhitespace(characters[i])) {
            return false;
        }
    }
    return true;
}