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JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D API, it supports a wide range of chart types including
bar charts, pie charts, line charts, XY-plots, time series plots, Sankey charts
and more.
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-present, by David Gilbert and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* ----------------
* StringUtils.java
* ----------------
* (C) Copyright 2000-present, by David Gilbert and Contributors.
*
* Original Author: David Gilbert;
* Contributors: -;
*/
package org.jfree.chart.util;
/**
* String utilities.
*/
public class StringUtils {
/**
* Private constructor prevents object creation.
*/
private StringUtils() {
}
/**
* Helper functions to query a strings start portion. The comparison is case insensitive.
*
* @param base the base string.
* @param start the starting text.
*
* @return true, if the string starts with the given starting text.
*/
public static boolean startsWithIgnoreCase(String base, String start) {
if (base.length() < start.length()) {
return false;
}
return base.regionMatches(true, 0, start, 0, start.length());
}
/**
* Helper functions to query a strings end portion. The comparison is case insensitive.
*
* @param base the base string.
* @param end the ending text.
*
* @return true, if the string ends with the given ending text.
*/
public static boolean endsWithIgnoreCase(String base, String end) {
if (base.length() < end.length()) {
return false;
}
return base.regionMatches(true, base.length() - end.length(), end, 0, end.length());
}
/**
* Queries the system properties for the line separator. If access
* to the System properties is forbidden, the UNIX default is returned.
*
* @return the line separator.
*/
public static String getLineSeparator() {
try {
return System.getProperty("line.separator", "\n");
}
catch (Exception e) {
return "\n";
}
}
}