Einfache Testprogramm Schleife Probleme

Question

Ich arbeite bei Jimmy John und ich arbeite an einem Test für die Sandwiches. Ich habe die Grundstruktur verloren, aber wenn Sie die falsche Frage beantworten, geht es weiter zur nächsten Frage. Ich brauche es, um die Frage erneut zu stellen und dann in der Schleife weiterzumachen. Hier ist der Code:

package Practice; 

import java.util.Scanner; 

public class jimmyTest { 
public static void main (String args[]){ 
int age, menuItem; 

String tomato, lettuce, mayo, ham, turkey, tuna, beef, capicola, salami, cheese, onion, sauce, oregano, avacado, dijon, sprouts; 
tomato = ("Tomato"); 
lettuce = ("lettuce"); 
mayo = ("mayo"); 
ham = ("ham"); 
turkey = ("turkey"); 
beef = ("beef"); 
capicola = ("capicola"); 
salami = ("Salami"); 
cheese = ("cheese"); 
onion = ("onion"); 
sauce = ("sauce"); 
oregano = ("oregano"); 
avacado = ("avacado"); 
dijon = ("dijon"); 
sprouts = ("sprouts"); 
tuna = ("tuna"); 
Scanner item = new Scanner(System.in); 
Scanner item1 = new Scanner(System.in); 
Scanner item2 = new Scanner(System.in); 
Scanner item3= new Scanner(System.in); 
Scanner item4 = new Scanner(System.in); 
Scanner item5 = new Scanner(System.in); 
Scanner item6 = new Scanner(System.in); 
Scanner item7 = new Scanner(System.in); 
Scanner item9 = new Scanner(System.in); 
Scanner item10 = new Scanner(System.in); 
Scanner item11 = new Scanner(System.in); 
Scanner item12 = new Scanner(System.in); 
Scanner item13 = new Scanner(System.in); 
Scanner item14 = new Scanner(System.in); 
Scanner item15 = new Scanner(System.in); 
Scanner item16 = new Scanner(System.in); 
Scanner item17 = new Scanner(System.in); 
Scanner item18 = new Scanner(System.in); 
Scanner finished = new Scanner(System.in); 
String scan1, scan2, scan3, scan4, scan5, scan6, scan7, scan8, scan9, scan10, scan11, scan12, scan13, scan14, scan15, scan16, scan17, scan18, fin; 
/* 
* scan1 = item1.next();  
* scan2 = item2.next();  
* scan3 = item3.next();  
* scan4 = item4.next();  
* scan5 = item5.next();  
* scan6 = item6.next();  
* scan7 = item7.next();  
* scan8 = item8.next();  
* scan9 = item9.next();  
* scan10 = item10.next(); 
* scan11 = item11.next(); 
* scan12 = item12.next(); 
* scan13 = item13.next(); 
* scan14 = item14.next(); 
* scan15 = item15.next(); 
* scan16 = item16.next(); 
* scan17 = item17.next(); 
* scan18 = item18.next(); 
* fin = finished.next(); 
* 
*/ 
System.out.println("This is a test over the Jimmy Johns menu. a menu Item will appear, enter each"); 
System.out.println("item that goes into the sandwich and press enter as you type each item."); 
menuItem = 0; 
int points; 
points = 0; 
do { 
switch (menuItem){ 
case 0: 
    System.out.println("What items are on the Slim 1 from the bread up"); 
    scan1 = item1.next(); 
    scan2 = item2.next(); 
    if (scan1.contains(ham) && scan2.contains(cheese)){ 
     System.out.println("Great job!"); 
     menuItem =+ 1; 
     points++; 
     System.out.println(points); 
    } 
    else{ 
     System.out.println("Lets try that again!"); 
    } 


    //***************************** 
case 1: 
    System.out.println("What items are on the Slim 2 from the bread up"); 
    scan1 = item1.next(); 

    if (scan1.contains(beef)){ 
     System.out.println("Great job!"); 
     menuItem =+ 1; 
     points++; 
     System.out.println(points); 

    } 
    else{ 
     System.out.println("Lets try that again!"); 
     menuItem = 1; 
     points = 1; 
     scan1 = item1.next(); 

    } 

    //***********************************8 




case 2: 
    System.out.println("What items are on the Slim 3 from the bread up"); 
    scan1 = item1.next();  
    if (scan1.contains(tuna)){ 
     System.out.println("Great job!"); 
     menuItem =+ 1; 
     points++; 
     System.out.println(points); 
    } 
    else{ 
     System.out.println("Lets try that again!"); 
     menuItem = 2; 
    } 
case 3: 
    System.out.println("What items are on the Slim 4 from the bread up"); 
    scan1 = item1.next();  
    if (scan1.contains(turkey)){ 
     System.out.println("Great job!"); 
     menuItem =+ 1; 
     points++; 
     System.out.println(points); 
    } 
    else{ 
     System.out.println("Lets try that again!"); 
     menuItem = 3; 

    } 
case 4: 
    System.out.println("What items are on the Slim 5 from the bread up"); 
    scan1 = item1.next(); 
    scan2 = item2.next(); 
    scan3 = item3.next(); 
    if (scan1.contains(salami) && scan2.contains(capicola) && scan3.contains(cheese)){ 
     System.out.println("Great job!"); 
     menuItem =+ 1; 
     points++; 
     System.out.println(points); 
    } 
    else{ 
     System.out.println("Lets try that again!");  
     menuItem = 4; 
    } 
case 5: 
    System.out.println("What items are on the Slim 6 from the bread up"); 
    scan1 = item1.next(); 
    scan2 = item2.next(); 
    scan3 = item3.next(); 
    if (scan1.contains(cheese) && scan2.contains(cheese)){ 
     System.out.println("Great job!"); 
     menuItem =+ 1; 
     points++; 
     System.out.println(points); 
    } 
    else{ 
     System.out.println("Lets try that again!"); 
     menuItem = 5; 
    } 
    break; 
case 6: 
    System.out.println("What items are on the #1 Pepe from the bread up"); 
    break; 
case 7: 
    System.out.println("What items are on the #2 Big John from the bread up"); 
    break; 
case 8: 
    System.out.println("What items are on the #3 Totally Tuna from the bread up"); 
    break; 
case 9: 
    System.out.println("What items are on the #4 Turkey Tom from the bread up"); 
    break; 
case 10: 
    System.out.println("What items are on the #5 Vito from the bread up"); 
    break; 
case 11: 
    System.out.println("What items are on the #6 Veggie from the bread up"); 
    break; 
case 12: 
    System.out.println("What items are on the JJBLT from the bread up"); 
    break; 
case 13: 
    System.out.println("What items are on the #7 Smoked Ham Club from the bread up"); 
    break; 
case 14: 
    System.out.println("What items are on the #8 Billy Club from the bread up"); 
    break; 
case 15: 
    System.out.println("What items are on the #9 Italian Club from the bread up"); 
    break; 
case 16: 
    System.out.println("What items are on the #10 Hunters Club from the bread up"); 
    break; 
case 17: 
    System.out.println("What items are on the #11 Country Club from the bread up"); 
    break; 
case 18: 
    System.out.println("What items are on the #12 Beach Club from the bread up"); 
    break; 
case 19: 
    System.out.println("What items are on the #13 Veggie Club from the bread up"); 
    break; 
case 20: 
    System.out.println("What items are on the #14 Bootlegger Club from the bread up"); 
    break; 
case 21: 
    System.out.println("What items are on the #15 Club Tuna from the bread up"); 
    break; 
case 22: 
    System.out.println("What items are on the #16 Club Lulu from the bread up"); 
    break; 
case 23: 
    System.out.println("What items are on the #17 Ultimate Porker from the bread up"); 
    break; 
case 24: 
    System.out.println("What items are on the Gargantuan from the bread up"); 
    break; 
} 

return; 


}while(points < 24); 
} 

Jede Hilfe würde sehr geschätzt werden!

Danke,

Quinten

Answer 1

denke ich Ihr Problem menuItem =+ 1; Aussagen in Ihren liegt. =+ ist eigentlich kein unterstützter Java-Operator. Der eigentliche Code soll

menuItem += 1; 

Dieser Unterschied gering aussehen könnte sein, aber Ihr Code im Wesentlichen tun:

menuItem = +1; 

wo +1 könnte gleich 2? Ich bin mir nicht sicher. Aber ich glaube nicht, dass es tut, was du denkst. Ich würde dazu neigen, alle diese Aussagen sowieso zu entfernen, da Sie menuItem nicht ändern müssen, wenn sie falsch antworten. Wenn Sie es gleich lassen, wird die Schleife mit dem gleichen menuItem fortgesetzt, was es scheint, was Sie wollen. Steigern Sie nur erfolgreiche Antworten.

Eine andere Sache zu beachten ist, dass String.Contains Groß-und Kleinschreibung unterscheidet, und Sie scheinen inkonsistent mit Ihren Menüelement Deklarationen zu sein. Sie könnten versuchen, diese stattdessen:

scan1.EqualsIgnoreCase(tuna); 

Auch Sie kein neues Scanner() für jede Frage benötigen. Sie können Scanner für mehrere Eingänge wiederverwenden, wie Sie es oft mit item1 tun.

So könnten Sie Ihren Code aufzuräumen durch Ersetzen:

scan1 = item1.next(); 
scan2 = item2.next(); 
scan3 = item3.next(); 

mit

string salamiTest = testScanner.next(); 
string capicolaTest = testScanner.next(); 
string cheeseTest = testScanner.next(); 

if (salamiTest.EqualsIgnoreCase(salami) /* && otherTests */) { 
    points++; 
    menuItem++; 
} 
// else { they are wrong, don't increment menuItem }