Answer:
The completed program is given below.
The completed program is given below.
The program has also been improved by accepting
input from the user.
The program uses the charAt( int index )
method of the String class.
This method returns a single character from a string.
The first character is at index 0,
the next is at index 1, and so on.
(Remember: a String is an object, even if it contains only one character.
The charAt() method must be used here to get a char that
can be used in the switch.)
import java.util.Scanner;
class Switcher
{
public static void main ( String[] args )
{
String lineIn;
char color ;
String message = "Color is";
Scanner scan = new Scanner( System.in );
System.out.print("Enter a color letter: ");
lineIn = scan.nextLine();
color = lineIn.charAt( 0 ); // get the first character
switch ( color )
{
case 'r':
case 'R':
message = message + " red" ;
break;
case 'o':
case 'O':
message = message + " orange" ;
break;
case 'y':
case 'Y':
message = message + " yellow" ;
break;
case 'g':
case 'G':
message = message + " green" ;
break;
case 'b':
case 'B':
message = message + " blue" ;
break;
case 'v':
case 'V':
message = message + " violet" ;
break;
default:
message = message + " unknown" ;
}
System.out.println ( message ) ;
}
}
Could the above program be written using if statements?