Why is the class name the same as the filename in Java?

The main reason for the class and file name to be same are to make the job of the complier easy to check which class it needs to run, in the whole list of the Java classes. So it’s a good practice to have filename and class name as same.

When it is mandatory to save the program with the same name as the name of class?

Let’s be clear on one point; this requirement is not mandatory unless until there is a public class in the file. If there is a class with access modifier as public in the file then it has to be saved with the same file name.

When must the main class and the file name coincide?

113) When must the main class and the file name coincide? Ans :When class is declared public.

Does every Java class need its own file?

According to Java standards and common practices, we should declare every class in its own source file. Each source file should contain only one public class and the name of that public class should be similar to the name of the source file.

Can we save Java source file without name?

what do you mean by without any name there need to be some name. Yes,it is possible to compile a java source file with different file name but you need to make sure none of the classes defined inside are public… when you compile the source file the corresponding .

Why program is named with class containing main method?

All Java programs must have an entry point, which is always the main() method. Whenever the program is called, it automatically executes the main() method first.

When it is mandatory to save the program with the same name as the name of class in Java?

The filename must have the same name as the public class name in that file, which is the way to tell the JVM that this is an entry point. Suppose when we create a program in which more than one class resides and after compiling a java source file, it will generate the same number of the .

Why does a programmer need to save the file with a file name of the name of the class?

The filename must have the same name as the public class name in that file, which is the way to tell the JVM that this is an entry point. In this condition, we will not able to easily identify which class need to interpret by java interpreter and which class containing Entry point for the program.

Should the class name and file name be same in Java?

In Java, the java file name should be always the same as a public class name. While writing a java program first it is saved as a “. java” file, when it is compiled it forms byte code which is a “.

Should each class be in its own file?

6 Answers. No. Typical Python style is to put related classes in the same module. It may be that a class ends up in a module of its own (especially if it’s a large class), but it should not be a goal in its own right.

Is Empty Java file name is valid for source file name?

Yes. An empty . java file is a perfectly valid source file.

How do I save a file without any name?

Steps to Create File Without Name

1. Open any folder.
2. Inside the folder, press right click.
3. Go to New -> Text Document.
4. A new text file will be created, containing New Text Document as its default name.
5. Now instead of writing the name of the file, just press Alt key and type 0160 from the right side of the keyboard.

Can we use any name for file name in Java?

We are allowed to use any name for file name only when class is not public. In case of public class we can’t use different file name. The filename must have same name as the public class name in that file, which is the way to tell the JVM(Java Virtual Machine) that this is what the entry point is for you.

Why do Java source files have different names for classes?

When Java source code is compiled, each individual class is put into its own output file named after the class and using the .class extension. This is why it is a good idea to give your Java source files the same name as the class they contain.

Why do we name files with the same name as classes?

Naming the file with the same name as the public class makes it easier for a compiler for the Java programming language or an implementation of the Java virtual machine to find a named class within a package. It means that the compiler need not search all the files in the package to find a particular public class.

Is it compulsory to always save a file with the same name?

No , it isn’t compulsory to always save a the file with the same name as the class. However, if you define a public class inside your java file, then the name of the file must be same as that of the public class. Here’s why. Public classes are accessible outside the package.