In JavaScript you can use isNaN to check if the given data is numeric ornon-numeric.Syntax : isNaN(testdata)ReturnValue :True if the testdata is non-numeric.False if the testdata is numeric.Here’s an example:
The following methods can be used for creating new instance of your classes, depending on your specific needs. import java.lang.ClassLoader;import java.net.URLClassLoader;import java.net.URL;public class InstantiateClass { testFinally newInstance() throws Exception {
Using the -verbose option during compilation and execution is very helpful—both for obtaining more information about the classes being loaded by the compiler and the interpreter and to find out
Once you are finished iterating through the values of an Object implementing the Enumeration interface, the next time youtry to use hasMoreElements() it will return false. Many developers are not
Use the fillInStackTrace() method to rethrow a Throwable type of exceptional condition in your code. This is useful if you want to rethrow a exception occurred while using a method