[DUPLICATE] What is public static void main ( string [] args )?

Question

Plz dont give any type of definations ... If u know the answer .... Plz create an example for it .. so i can easily understand your answer ... i need to learn perfectly ...

Answer 1

If you dont get definitions how will you understand, in that case you've solved your own question because you've just provided the example which is code you wrote....

Answer 2

A Java program needs to start its execution somewhere. A Java program starts by executing the main method of some class. You can choose the name of the class to execute, but not the name of the method. The method must always be called main. Here is how the main method declaration looks when located inside the Java class declaration from earlier:

package myjavacode;
public class MyClass {
public static void main(String[] args) {
}
}

The three keywords public, static and void have a special meaning.
In the main() method example earlier I called the String array parameter args, and in the second example I called it stringArray. You can choose the name freely.
Let us insert a single instruction into the main method body. Here is an example of how that could look:

package myjavacode; public class MyClass { public static void main(String[] args) { System.out.println("Hello World, Java Program"); } }

Now the main method contains this single Java instruction:

System.out.println("Hello World, Java Program");

This instruction will print out the text Hello World, Java Program to the console.
If only a single Java class in your Java program contains a main() method, then the class containing the main() method is often referred to as the main class.

You can have as many classes as you want in your project with a main()method in. But, the Java Virtual Machine can only be instructed to run one of them at a time. You can still call the other main() methods from inside the main()method the Java Virtual Machine executes (you haven't seen how yet) and you can also start up multiple virtual machines which each execute a single main() method.

After the method's parameter list comes first a left curly bracket ({), then some empty space, and then a right curly bracket (}). Inside the curly brackets you locate the Java instructions that are to be executed when the main method is executed. This is also referred to as the method body. 

Answer 3

it's the main method, a Java program can't run without it. it's where you put all of your code, you can write code outside of the main method but you need to call it from the main method for it to run.
for example
public static void main(string []args) {
system.out.println("hello Java");

// calling the method outside
example();
}
// method outside of the main method
public static void example() {
system.out.println("this is method");
}
I don't know if this helps
p.s I'm not an expert.

Answer 4

guys i need examples of those public static void ... i dont undertand it properly ... why do we need this ... public static void ....