Example usage for java.lang String trim

Introduction

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

Prototype

public String trim()

Source Link

Document

Returns a string whose value is this string, with all leading and trailing space removed, where space is defined as any character whose codepoint is less than or equal to 'U+0020' (the space character).

Usage

From source file:Main.java

public static boolean isNullOrEmpty(String str) {
    return null == str || str.trim().length() < 1;
}

From source file:Main.java

public static Integer getInteger(JTextField txt, Integer defaultVal) {
    String str = txt.getText();
    if (str.trim().length() <= 0)
        return defaultVal;

    int val = 0;
    try {//from w  ww. j  a v a2  s. c o m
        val = Integer.parseInt(str);
    } catch (NumberFormatException ex) {
    }
    return new Integer(val);
}

From source file:Main.java

private static int getCompressionType(String header) {
    String s = header.trim();
    if (s.equals("") || s.equalsIgnoreCase(C_HEADER_NONE_VAL))
        return NONE;
    else if (s.equalsIgnoreCase(C_HEADER_GZIP_VAL))
        return GZIP;
    else if (s.equalsIgnoreCase(C_HEADER_ZLIB_VAL))
        return ZLIB;
    else//  www  .java  2s  .  c o m
        return -1;

}

From source file:Main.java

public static String checkString(String str, String tmp) {
    if (!(str == null || str.trim().equals("") || str.trim().equals("null")))
        return (String) str.trim().toString();
    else//from www .j  a  va 2s .  co m
        return tmp;
}

From source file:Main.java

/**
 * Returns true if the specified string is null or empty.
 *
 * @param s//from ww  w  .  j  a  va  2s  . c o  m
 *            The string to test.
 * @return True if the specified string is null or empty.
 */
private static boolean isEmptyString(String s) {
    return s == null || s.trim().length() == 0;
}

From source file:Main.java

public static boolean isEmpty(String str) {
    return (str == null || str.trim().equals(""));
}

From source file:Main.java

public static boolean isEmpty(String dostr) {
    if (dostr == null || "".equals(dostr.trim()) || "null".equals(dostr) || dostr == " ") {
        return true;
    }/*from   w w  w  .j  a v  a2  s. co m*/
    return false;
}

From source file:Main.java

public static String getNonEmptyString(Object obj) {
    if (!(obj instanceof String)) {
        return null;
    }/*www .  j a  v  a 2s .c o m*/
    String str = (String) obj;
    return (str.trim().length() > 0 ? str : null);
}

From source file:org.hcmut.emr.SessionBuilder.java

public static String buildValue(String content) {
    content = content.trim();
    String[] str = content.split(" ");
    if (str.length == 2) {
        return str[0].substring(0, 3);
    } else {/*from   ww w . java 2s .  c om*/
        String result = "";
        for (int i = 0; i < str.length - 1; i++) {
            String current = (str[i].length() > 2) ? str[i].trim().substring(0, 2)
                    : str[i].trim().substring(0, 1);
            result = result + current;
        }
        return result;
    }
}

From source file:Main.java

public static boolean stringIsNull(String str) {
    if (!TextUtils.isEmpty(str) && str.trim().length() != 0) {
        return false;
    }//from   w  w  w .  j a v a2s  .  c o m
    return true;
}