How to declare and invoke methods in Java?

Question

Amrith Chandran · Answer

Method in Java
A method in Java is a block of code that performs a specific task. It improves the reusability and modularity of the code.
and 
Declaring a Method
The below syntax is for declaring a method in java,
returnType methodName(parameters) {
   // Method body (statements)
   return value; // (if returnType is not void)
}
and 
Components of a method declaration:
Return type - Specifies the data type of the value to be returned by the method. If no value is returned, use
void.Method name - Follows standard naming conventions (CamelCase).Parameters (optional) - The values ​​passed to the method inside the brackets.Method body - The actual code inside {} that is executed when the method is called.Return statement (optional) - Used if the method returns a value.
and 
Example
class Example {
   // Method with no parameters and no return value
   void sayHello() {
       System.out.println("Hello, World!");
   }
}
and 
Invoking (Calling) a Method
To execute a method, we need to call it using its name.
Syntax
objectName.methodName(arguments);
If the method is static type then call it using its class name
ClassName.methodName(arguments);
Example
class ClassExample {
   // Method Declaration
   void greet() {
       System.out.println("Welcome to Java!");
   }
   public static void main(String[] args) {
       ClassExample objName = new ClassExample(); // Creating an object
       objName.greet(); // Calling the method
   }
}
Ouput
Welcome to Java!
and 
Also, Read: 
Types of Methods in Java

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How to declare and invoke methods in Java?

Ashutosh Kumar Verma

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