How can i make a java program that will run the following 1. When run it should show "Welcome Select from menu" "Press 1 for show price", "press 2 to show discount" "press 3 to exit" The program should ask for user input and give an error message if wrong number is entered. 2.

Answer 1

first display the message to the screen
then put a if statement if(input == 1) then show price if(input == 2) then show discount
then write if(input != 1&&input != 2) then gives a message

Answer 2

public class Program
{
public static void main(String[] args)
{
boolean doesResponseRecived = false;
System.out.println("Welcome Select from Menu");
while(!doesResponseRecived)
{
System.out.println("Press 1 for show price");
System.out.println("press 1 for show discount");
System.out.println("press 3 for exit");
java.util.Scanner sb = new java.util.Scanner(System.in);
String resp = sb.next();
if(resp.equals("1") ||
resp.equals("2") ||
resp.equals("3"))
{
System.out.println("We have got your response');
doesResponseRecived = true;
}else{
System.out.println("Enter either 1,2 or 3");
}
}
}
}