Introduction
Java, now
it’s time to play with JAVA. I started with a new existing point.
Can we use multiple main in a program
Yes; we can use multiple “main()” method in a java program. But the both main methods argument should not be same, as you know, the java programs execution is start from “main()” method means (public static void main(String arg[]), then simply declare the second ‘main()” method in this main method for execution, Now the given below example shown you how to do it.
Example
Can we use multiple main in a program
Yes; we can use multiple “main()” method in a java program. But the both main methods argument should not be same, as you know, the java programs execution is start from “main()” method means (public static void main(String arg[]), then simply declare the second ‘main()” method in this main method for execution, Now the given below example shown you how to do it.
Example
class A
{
public static void
main(String arg[])
{System.out.println("welcome");
main();
}
public static void
main()
{
System.out.println("first");
}
}
Output
Output
Can we run the program without main(String
[] args) method
Yes we can run a java program without main() method. Because java provide a functionality with the use of “static” keyword and that “static” keyword can be a block or static data member or static method, firstly execute whenever you compile a java program. Let’s see, it works or not.
Example
Yes we can run a java program without main() method. Because java provide a functionality with the use of “static” keyword and that “static” keyword can be a block or static data member or static method, firstly execute whenever you compile a java program. Let’s see, it works or not.
Example
class A
{
static
{
System.out.println("welcome");
System.exit(0);
}
}Output
Can we change the main thread name?
Yes, we can change the main thread name.
Can we print the message before the main method execution?
Yes, we can print the message before the main method. Let’s see how
Example
Yes, we can change the main thread name.
Can we print the message before the main method execution?
Yes, we can print the message before the main method. Let’s see how
Example
class A
{
static
{
System.out.println("welcome");
}
public static void
main(String arg[])
{System.out.println("main
method");}}Output
