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via Stack Overflow by Koudela
, 1 year ago
java.lang.NullPointerException at testingJava.SubClass.set(SubClass.java:19) at testingJava.SuperClass.<init>(SuperClass.java:7) at testingJava.SubClass.<init>(SubClass.java:10) at testingJava.MainClass.main(MainClass.java:9)