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Copyright (c) 2009-2012 Alexander Kerner. All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. /
package net.sf.kerner.utils;

Utility class for java.lang.String related stuff.


 TODO example

Alexander Kerner
Apr 13, 2012
public class StringUtils {
	private StringUtils() {

System dependent new line string.
	public final static String NEW_LINE_STRING = System.getProperty("line.separator");

a random String
	public static String getRandomString() {
		final String result = Long.toHexString(Double.doubleToLongBits(Math.random()));
		return result;

Check if a string is null, empty or contains only whitespaces.

string String to check
true, if this String is null, empty or contains only whitespaces; false otherwise
	public static boolean emptyString(String string) {
		if (string == null)
			return true;
		if (string.length() < 1)
			return true;
		if (string.matches("\\s"))
			return true;
		return false;
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