Best answer: Can we use int instead of void in main function in java?

Can we use int in main method in java?

Yes, you can but you can’t run that Java class. Q 2: Next question I unable to answer. He asked write a program so that your java main method could return something. You can use System#exit(int) to quit your program with a specific exit code which can be interpreted by the operating system.

Why do we use int main instead of void Main?

The void main() indicates that the main() function will not return any value, but the int main() indicates that the main() can return integer type data. When our program is simple, and it is not going to terminate before reaching the last line of the code, or the code is error free, then we can use the void main().

Can return type of main function be int?

main function return type is integer by default. But it cam be void also . When return type is integer ,you have to include “return 0” statement at the end .

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Can we write int args in main method?

I was under the impression that the main method had to have the form “public static void main (String[] args){}”, that you couldn’t pass int[] arguments. However, in windows commandline, when running the following . class file, it accepted both int and string as arguments.

What is String [] args in Java?

String[] args means an array of sequence of characters (Strings) that are passed to the “main” function. This happens when a program is executed. Example when you execute a Java program via the command line: java MyProgram This is just a test. Therefore, the array will store: [“This”, “is”, “just”, “a”, “test”]

Why we Cannot override static method?

Overloading is the mechanism of binding the method call with the method body dynamically based on the parameters passed to the method call. Static methods are bonded at compile time using static binding. Therefore, we cannot override static methods in Java.

Why void main is wrong?

Therefore, the designers could choose void main() and require the use of System. exit() for non-zero exit codes. So, the thing that would be “wrong” with choosing void main() for the C++ standard would be that it would break existing code that expected to use return and an exit code value from main() .

Why is main () an int?

The short answer, is because the C++ standard requires main() to return int . As you probably know, the return value from the main() function is used by the runtime library as the exit code for the process. Both Unix and Win32 support the concept of a (small) integer returned from a process after it has finished.

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What is int main void?

int main() indicates that the main function can be called with any number of parameters or without any parameter. On the other hand, int main(void) indicates that the main function will be called without any parameter #include <stdio.h> int main() { static int i = 5; if (–i){ printf(“%d “, i); main(10); } }

What is the return type of main () method?

As main() method doesn’t return anything, its return type is void. As soon as the main() method terminates, the java program terminates too. Hence, it doesn’t make any sense to return from main() method as JVM can’t do anything with the return value of it.

What is the main datatype of a function?

Most programming languages support basic data types of integer numbers (of varying sizes), floating-point numbers (which approximate real numbers), characters and Booleans. A data type constrains the values that an expression, such as a variable or a function, might take.

Can we change return type of main () method?

println ), but you can’t change the return type of main . The main method’s return type must be void , because the java language specification enforces it.

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