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The Main method is the method in which execution to any java program begins.
A main method declaration looks as follows:
public static void main(String args[]){
}
The method is public because it be accessible to the JVM to begin execution of the program.
It is Static because it be available for execution without an object instance. you may know that you need an object instance to invoke any method. So you cannot begin execution of a class without its object if the main method was not static.
It returns only a void because, once the main method execution is over, the program terminates. So there can be no data that can be returned by the Main method
The last parameter is String args[]. This is used to signify that the user may opt to enter parameters to the java program at command line. We can use both String[] args or String args[]. The Java compiler would accept both forms.
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User : ALPHAZERO
You can also use like this
class alpha{
public static void main(String...args){
S.o.p("HOW");
}
}
[S.o.p = System.out.println]
Still i don't know explain why but i know its work you can also try like this if you already know how its work please post here or mail me zalpha@rocketmail.com
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Wiki User
∙ 14y ago
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What are the valid signatures of the main method of a class?
The main method can be declared as either of the below: public static void main(String[] args) or public static void main(String args[])
What if you write static public void instead of public static void?
It would actually make no difference. The presence of the keywords during the declaration of the main method is important and not the order. so a static public void main(String[] args) would just compile and run perfectly fine just like public static void main(String[] args)
Can you have two mains in java?
Yes... We can have more than one main in JAVA... Just make the only one main method as public and other as default access specifier.... public class Test { public static void main(String args[]) { } } class Test1 { public static void main(String args[]) { } } class Test2 { public static void main(String args[]) { } } Just copy the above code and try.... Have fun in learning... :-) :) :-)
Write a Java program to generate a copy of itself?
public class S{public static void main(String[]a){String o="public class S{public static void main(String[]a){String o=%c%s%c;System.out.printf(o,34,o,34);}}";System.out.printf(o,34,o,34);}}
Java program to give input of a string and display it?
import java.util.*; public class Example { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("Please enter a string:"); String input = in.next(); System.out.println("The String you entered is: " + input); } }
What are the valid signatures of the main method of a class?
The main method can be declared as either of the below: public static void main(String[] args) or public static void main(String args[])
What if you write static public void instead of public static void?
It would actually make no difference. The presence of the keywords during the declaration of the main method is important and not the order. so a static public void main(String[] args) would just compile and run perfectly fine just like public static void main(String[] args)
Can you have two mains in java?
Yes... We can have more than one main in JAVA... Just make the only one main method as public and other as default access specifier.... public class Test { public static void main(String args[]) { } } class Test1 { public static void main(String args[]) { } } class Test2 { public static void main(String args[]) { } } Just copy the above code and try.... Have fun in learning... :-) :) :-)
Write a Java program to generate a copy of itself?
public class S{public static void main(String[]a){String o="public class S{public static void main(String[]a){String o=%c%s%c;System.out.printf(o,34,o,34);}}";System.out.printf(o,34,o,34);}}
Java program to give input of a string and display it?
import java.util.*; public class Example { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("Please enter a string:"); String input = in.next(); System.out.println("The String you entered is: " + input); } }
What is the error in exception handling in java with example?
class Demo { public static void main(String s[]) { System.out.println("hello java frm Demo"); } } class Demo1 { public static void main(String s[]) { System.out.println("hello java frm Demo1"); String z={" "}; Demo.main(); } }
Write a program to eliminate the blanks from string 8085?
public class RemoveSpace{ public static void main(String args[]){ String str = "8085"; Sysytem.out.println(str.trim()); } } Get The Desired OutPut....
Is it possible to call static methods with out creating object?
Yes, we can access all methods which declare with static means then we can access.. ex: class s{ static method() { System.out.println("Welcome"); } } class fun{ public static void main(String args[]) { method(); } }
Is there any change by interchanging the position of main in Public static void main in java?
No. You can write it in as many ways as you want. The words public, static and void can be interchanged during the method declaration and still the main() method will continue to work in the same way. i.e., public static void main(String[] args) is the same as static public void main(String[] args) However, if you miss either of these 3 keywords from the method signature, the compiler will still let you compile the method, but it just won't be the main method that can be used to start the program execution.
How many types can write public static void main in java?
You can write it in as many ways as you want. The words public, static and void can be interchanged during the method declaration and still the main() method will continue to work in the same way. i.e., public static void main(String[] args) is the same as static public void main(String[] args) However, if you miss either of these 3 keywords from the method signature, the compiler will still let you compile the method, but it just won't be the main method that can be used to start the program execution.
How to Write a java program to display hello?
public class Hello{public static void main(String [] args){System.out.println("Hello");}}
Sample code in java programming?
public class Hello { public static void main (String args[]) { System.out.println("Hello World"); } }
