The long keyword in Java programming language

In this tutorial, we will learn about the long keyword in java programming language

long is a Java keyword which is used to declare a variable as a numeric type. A long value can hold a 64-bit integer number which ranges from -263 to 263-1.

Declaration variable

the syntax of the long keyword in variable

int <variable_name> <long_value>;

Example variable

Example of long keyword

long amount; = 2345;

program 1

public class long_Keyword{
        public static void main(String args[]){
            long l1=10012; //long keyword is used as variable
            long l2=11011;
            long result=l1+l2;
            System.out.println("The result is :"+result);
                    }

            }

When the above code is compiled and executed, it will produce the following result

The result is :21023

The long keyword can be used to declare return type method in Java

Declaration of method

the syntax of the long keyword in variable

access_modifier long method_name(){
return value;//return statement
}

Example method

Example of the long keyword in declaring a method

public long gerHeight(){

}

Above method is a long method which returns any value

Example long method within the class

public class Example _long{  // this is a class in java
public static void main(String args[]){ // this is a main method in java
}
public long add(){  // this is a long method which returns value;
}
}

program 2

public class long_Keyword1{
        public static void main(String args[]){
            add(34656,45634);
        }
            static long add (long l1,long l2){ 
            //long keyword is used to method as return type
            //long keyword is used as parameter
            long result=l1+l2;
            System.out.println("The result is :"+result);
            return result;
                    }
                
            }

When the above code is compiled and executed, it will produce the following results