If you are getting error: could not find a main class, then ensure that you have added the location of you .class file to your classpath. So, if it is in the current folder then add . to your classpath.
You need these three things :
64-bit ...READ MORE
Check your javac path on Windows using Windows Explorer C:\Program Files\Java\jdk1.7.0_02\bin and ...READ MORE
Using nio we can check whether file ...READ MORE
str != null && str.length() != 0
str ...READ MORE
Use the final modifier to enforce good initialization.
Avoid returning ...READ MORE
Whenever you require to explore the constructor ...READ MORE
String are immutable in Java. You can't ...READ MORE
A static method has two main purposes:
For ...READ MORE
You can use string.indexOf('s').
If the 's' is present in string, ...READ MORE
A simple example:
public class Expl