external.org.apache.commons.lang3.NumberUtils Maven / Gradle / Ivy
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ratel api,used for developer on ratel system,an extension for xposed framewrok,ratel api compatable with original xposed framework
package external.org.apache.commons.lang3;
public class NumberUtils {
/**
* Convert a String to a double, returning
* 0.0d if the conversion fails.
*
* If the string str is null,
* 0.0d is returned.
*
*
* NumberUtils.toDouble(null) = 0.0d
* NumberUtils.toDouble("") = 0.0d
* NumberUtils.toDouble("1.5") = 1.5d
*
*
* @param str the string to convert, may be null
* @return the double represented by the string, or 0.0d
* if conversion fails
* @since 2.1
*/
public static double toDouble(final String str) {
return toDouble(str, 0.0d);
}
/**
* Convert a String to a double, returning a
* default value if the conversion fails.
*
* If the string str is null, the default
* value is returned.
*
*
* NumberUtils.toDouble(null, 1.1d) = 1.1d
* NumberUtils.toDouble("", 1.1d) = 1.1d
* NumberUtils.toDouble("1.5", 0.0d) = 1.5d
*
*
* @param str the string to convert, may be null
* @param defaultValue the default value
* @return the double represented by the string, or defaultValue
* if conversion fails
* @since 2.1
*/
public static double toDouble(final String str, final double defaultValue) {
if (str == null) {
return defaultValue;
}
try {
return Double.parseDouble(str);
} catch (final NumberFormatException nfe) {
return defaultValue;
}
}
/**
* Convert a String to an int, returning
* zero if the conversion fails.
*
* If the string is null, zero is returned.
*
*
* NumberUtils.toInt(null) = 0
* NumberUtils.toInt("") = 0
* NumberUtils.toInt("1") = 1
*
*
* @param str the string to convert, may be null
* @return the int represented by the string, or zero if
* conversion fails
* @since 2.1
*/
public static int toInt(final String str) {
return toInt(str, 0);
}
/**
* Convert a String to an int, returning a
* default value if the conversion fails.
*
* If the string is null, the default value is returned.
*
*
* NumberUtils.toInt(null, 1) = 1
* NumberUtils.toInt("", 1) = 1
* NumberUtils.toInt("1", 0) = 1
*
*
* @param str the string to convert, may be null
* @param defaultValue the default value
* @return the int represented by the string, or the default if conversion fails
* @since 2.1
*/
public static int toInt(final String str, final int defaultValue) {
if(str == null) {
return defaultValue;
}
try {
return Integer.parseInt(str);
} catch (final NumberFormatException nfe) {
return defaultValue;
}
}
}