Table of Contents
- 1 What if I write static public void main instead of public static void main?
- 2 Why we have to write a public static void main in Java?
- 3 Can I write public void static Main?
- 4 What is the difference between throw and throws in Java?
- 5 Why is main method public static and void in Java?
- 6 What if we don’t write “static” before the main method?
What if I write static public void main instead of public static void main?
If you write static public void instead of public static void then it is perfectly OK. Your Java program will compile and run successfully. It doesn’t really make any difference as long as method name comes last and return type of method comes second last.
Can we have public static int main in Java?
we can’t write public static int[] main() & public static int main(). Coz, public static int main() mean this function returns int value but in reality, the main function doesn’t return anything.
Why we have to write a public static void main in Java?
The main method must be declared as static so that the JVM can access the main method directly by using the class name. When we execute a java program we use the class name so when we write static it will help the JVM to access the main method.
Can we write public static void main int args []) in Java?
Apart from the above mentioned signature of main, you could use public static void main(String args[]) or public static void main(String… args) to call the main function in java. The main method is called if it’s formal parameter matches that of an array of Strings.
Can I write public void static Main?
Yes, we can change the order of public static void main() to static public void main() in Java, the compiler doesn’t throw any compile-time or runtime error. In Java, we can declare access modifiers in any order, the method name comes last, the return type comes second to last and then after it’s our choice.
What is the difference between public void and public static void?
public − This is the access specifier that states that the method can be accesses publically. static − Here, the object is not required to access static members. void − This states that the method doesn’t return any value.
What is the difference between throw and throws in Java?
Throw is a keyword which is used to throw an exception explicitly in the program inside a function or inside a block of code. Throws is a keyword used in the method signature used to declare an exception which might get thrown by the function while executing the code.
When IO exception occurs in Java?
Java IOExceptions are Input/Output exceptions (I/O), and they occur whenever an input or output operation is failed or interpreted. For example, if you are trying to read in a file that does not exist, Java would throw an I/O exception. IOException is thrown when an error occurred during an input-output operation.
Why is main method public static and void in Java?
Why is main method public static and void in Java? Will the program compile, if the main method is not static? Java program’s main method has to be declared static because keyword static allows main to be called without creating an object of the class in which the main method is defined.
Can we write a Java class with public static int main(String[] args)?
Can we write a java class with : public static int main (String [] args) { 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.
What if we don’t write “static” before the main method?
What if we don’t write “static” before the main method: If we do not write “static” before the main method then, our program will be compiled without any compilation error (s). But at the time of execution, the JVM searches for the main method which is public, static, with a return type and a String array as an argument.
What is the difference between public static and public static?
Public: Public is the access specifier it is intended for the purpose of the JVM to execute the main method from any location. Static : Static is a modifier.The main method must be declared as static so that the JVM can access the main method directly by using the class name.