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Java > Learn Java > Why do we use â??public static void mainâ?? only in...
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Why do we use â??public static void mainâ?? only in Java?

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public static void main() main() is the starting point of any java program and your code write inside it. Without it you can not execute console progem in java
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This is neccesary because main() is called by the JVM before any objects are made. Since it is static it can be directly invoked the class. Similarly, we use staticsometime for user defined methods so that we need not to make objects. voidindicates that the main() method being declared does not return...
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This is neccesary because main() is called by the JVM before any objects are made. Since it is static it can be directly invoked the class. Similarly, we use staticsometime for user defined methods so that we need not to make objects. voidindicates that the main() method being declared does not return a value.

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Every computer program needs a starting point of execution and the static main function is the starting point of execution in Java language. Now it was a choice of the language designers of Java to make it that way. But there is a reason to make it static because if it is not static then JVM has to create...
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Every computer program needs a starting point of execution and the static main function is the starting point of execution in Java language. Now it was a choice of the language designers of Java to make it that way. But there is a reason to make it static because if it is not static then JVM has to create an instance of the class where the main method is then it has to call the main method, which is an extra overhead in terms of performance.

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Whenever we use static keyword before any function it means that the function can be invoked when required without using object. And main() is the function that starts the execution of program. So the function to be invoked by JVM it has to be public. It has to be static so that it can be invoked without...
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Whenever we use static keyword before any function it means that the function can be invoked when required without using object. And main() is the function that starts the execution  of program. So the function to be invoked by JVM it has to be public. It has to be static so that it can be invoked without creating any object. We can use any other return type like int instead of void if we want main() to return any value. 

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