java.lang.NullPointerException

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  • nullpointerexception with String???
    via by James Brooks,
    • java.lang.NullPointerException at project4.Shop.toString(Shop.java:51) at java.lang.String.valueOf(String.java:2827) at java.lang.StringBuilder.append(StringBuilder.java:115) at project4.Tester.main(Tester.java:17)
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