Question

Write the code for invoking a static method named sendDouble, provided by the DataTransmitter class. There is one double argument for this method. Assume that a double variable called x has already been declared and initialized to some value. Use this variable's value as an argument in your method invocation.

Answer 1

The program to this question as follows:

Program:

public class DataTransmitter //defining class

{

double x=3.0; //define variable x.

public static void sendDouble(double x) //define method sendDouble.

{

x=9.6; //change variable value

System.out.print("The value of x variable is :"+x); //print value.

}

public static void main(String[] args) //define main method

{

sendDouble(0.0); //calling function

}

}

Output:

The value of x variable is :9.6

Explanation:

The explanation of the above java program can be define as follows:

• In the above java program a class is define that is "DataTransmitter" inside a class a double variable that is x is define which contain a double value that is "3.0".
• In this class, a static method "sendDouble()" is defined. in the method, a double parameter is passed. inside a method, we change the variable value and print its value.
• In main method is a sendDouble() function is called. In calling time a double value is passed in the function parameter.