Question

Echo Input from the Console to the Screen

Review the resources and instructions in the Discussion Prep Study before completing this discussion.

To prepare for this discussion, you practiced echoing the value read from the console to the screen. Create a Java program that reads in any value entered at the console and then prints it out to the screen.

• Provide a screenshot of your result of your work. Your screenshot should look like the example in the "Echo Input Results" resource.
• Explain, briefly, how you completed this exercise, the algorithm you used (via pseudo code or other description tools), the major issues you faced, and how you solved them.
• Reflect on your experience and what you learned.

Answer 1

->Scanner is a java class in java.util package which is used to read input from the console.
->Java program starts with a class declaration.
->By default, all the code should be written in the main function.
->Initially a string variable a is declared.
->Then, we instantiate the scanner class. This class will use the method nextLine(), which reads input until a new line is encountered.
->Using this method, data is stored in the variable a.
->Then, println method is used, which prints the read data.

Code:
import java.util.Scanner;
class Demo
{
   public static void main(String args[])
   {
       String a;
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter anything to read");
       a=sc.nextLine();
       System.out.println("Data entered is: "+a);
   }
}

Output: