In your method setDetails you haven’t specified anything for the return type, if it is not returning anything then specify void For Voter class for Candidates class One other thing, (Thanks to Frank Pavageau) your class name is Candidates and you have defined the constructor with Candidate without s, that is why it is being considered as a normal method, and thus should have a return type. You your rename … Read more
How about the JDK source code, but accessed through a 3rd party like docjar? For example, the Collections source. That way, there’s no big download.
Reinstall JDK and set system variable JAVA_HOME on your JDK. (e.g. C:\tools\jdk7)And add JAVA_HOME variable to your PATH system variable Type in command line and To verify whether your installation was done successfully.
Your byte array must have some encoding. The encoding cannot be ASCII if you’ve got negative values. Once you figure that out, you can convert a set of bytes to a String using: There are a bunch of encodings you can use, look at the supported encodings in the Oracle javadocs.
If you put a return statement in the if, while or for statement then it may or may not return a value. If it will not go inside these statements then also that method should return some value (that could be null). To ensure that, compiler will force you to write this return statement which is after if, while or for. But if you … Read more
There is something slightly closer; an instance version of String::format, called formatted: It is similar to String::format, but is more friendly to use in chained expressions.
Yes, Blah.valueOf(“A”) will give you Blah.A. Note that the name must be an exact match, including case: Blah.valueOf(“a”) and Blah.valueOf(“A “) both throw an IllegalArgumentException. The static methods valueOf() and values() are created at compile time and do not appear in source code. They do appear in Javadoc, though; for example, Dialog.ModalityType shows both methods.
list.toString() is good enough. The interface List does not define a contract for toString(), but the AbstractCollection base class provides a useful implementation that ArrayList inherits.
You must understand the difference between a class and an instance of that class. If you see a car on the street, you know immediately that it’s a car even if you can’t see which model or type. This is because you compare what you see with the class “car”. The class contains which is similar to … Read more
For anyone who has this exact same problem in the future, as James_D and the other answer contributors mentioned, removing the “/” at the beginning of the path fixes the problem so use instead of