Compiler wont let String variable in switch statement

Question

Before I make any of the conditions for my app, I need to be able to let the switch statement run under the while loop. Its saying that it is unable to work under any compiler under 1.7. JRE. I don't know what that means and I also do not know how to change the variables to enum types.

package PokerApp;
import java.util.Scanner;
public class PokerApp {

    public static void main(String[] args) {

int card1 = 0;
int card2 = 0;
int play;
String fc1 = "", fc2 ="";
String answer = "";

Scanner scan = new Scanner(System.in);

//**************************************
//              Card1
//**************************************
System.out.println("Press 1 to evalaute your cards: ");
play = scan.nextInt();
while (play != 0){

System.out.println("First Card: ");
if (scan.hasNextInt())
{
    card1 = scan.nextInt(9)+2;
}
else{
    fc1 = scan.next();
    switch(fc1)
    {
    case "A":
        card1 = 14;
        break;
    case "K":
        card1 = 13;
        break;
    case "Q":
        card1 = 12;
        break;
    case "J":
        card1 = 11;
        break;
        default:System.out.println("Incvalid entry");
    }
//***************************************
//              Card2
//***************************************

System.out.println("Second card: ");
if (scan.hasNextInt())
{
    card2 = scan.nextInt(9) +2;
}
else{
    fc2 = scan.next();
    switch (fc2)
    {
    case "A":
        card2 = 14;
        break;
    case "K":
        card2 = 13;
        break;
    case "Q":
        card2 = 12;
        break;
    case "J":
        card2 = 11;
        break;
    default:System.out.println("Invalid entry.");
    }

    }
}

    }

}
}

It will not. Java 8 and above allows you to do that. docs.oracle.com/javase/tutorial/displayCode.html?code=http://… — Trojan.ZBOT
– Trojan.ZBOT, Commented Dec 4, 2013 at 1:08
Java has versions. Using switch with String was introduced in Java 7. Check your versions. — Sotirios Delimanolis
– Sotirios Delimanolis, Commented Dec 4, 2013 at 1:08
@Trojan.ZBOT I think this feature was introduced in 1.7 or Java 7. — Kevin Bowersox
– Kevin Bowersox, Commented Dec 4, 2013 at 1:09

rgettman · Accepted Answer · 2013-12-04 01:09:03Z

2

Allowing Strings in switch statements was new in Java 1.7. Upgrade your Java to 1.7+ and use it in Eclipse, or if you can't, then you must convert your cases into if-else statements.

answered Dec 4, 2013 at 1:09

rgettman

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2 Comments

MGL94 Over a year ago

But when i switch it to 1.7 all of my "systems" get errors like for my System.out.println's

Giulio Franco Over a year ago

The errors are probably due to the fact that you don't have a version 7 JDK installed and/or configured within your IDE.

Kevin Bowersox · Accepted Answer · 2013-12-04 01:08:32Z

0

Strings were not able to be used as part of switch statements in JDK versions prior to 1.7. You need to install JDK 1.7 and set Eclipse to use this version of the JDK.

See this video that details how to switch your JRE/JDK version.

answered Dec 4, 2013 at 1:08

Kevin Bowersox

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