Скачать или смотреть structure of java program explanation in hindi

In this video you will learn that what is the basic structure of a java program.
Structure of Java Program
• The java program is stored in a file having extension .java
• A java program can have class, abstract class or an interface.
• If you want to make your program executable then your class must contain main() function.
• A java file contain any number of classes.
• Every class can contain a main() function.

The structure of a basic java program looks like as follows :
class ClassName
{ public static void main(String []args)
{ //code goes here;
}
}

class : class is the keyword, which is used to define class.

ClassName : It is an identifier, you can use any name here.
{} tells the boundary of the class.

public: It is visibility mode of main(), it specifies that main() function is public and it can be called outside from this class.

The main() is called by Java Virtual Machine, and execution of java program always starts from main().

static: In java, main() is always static as it is called by JVM without creating any object.

void: void is the return type of main(). In java main() does not return anything, so its return type must be void.
If you change the return type of main() then your program can be compiled, but at execution it gives error.

main() : main() is the function. Execution of every java program starts from main().
In java, main() Takes an array of String as argument.



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