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Share some Java and Middleware 1Z0-808 exam questions and answers below.
Which two statements are true? 
A. Error class is unextendable. 
B. Error class is extendable. 
C. Error is a RuntimeException. 
D. Error is an Exception. 
E. Error is a Throwable. 
Answer: B,C

Which statement is true about the switch statement? 
A. It must contain the default section. 
B. The break statement, at the end of each case block, is mandatory. 
C. Its case label literals can be changed at runtime. 
D. Its expression must evaluate to a single value. 
Answer: D

Which two class definitions fail to compile? 
A. abstract class A3 {private static int i;public void doStuff(){}public A3(){}} 
B. final class A1 {public A1(){}} 
C. public class A2 {private static int i;private A2(){}} 
D. class A4 {protected static final int i;private void doStuff(){}} 
E. final abstract class A5 {protected static int i;void doStuff(){}abstract void doIt();} 
Answer: C,E

Which three statements are true about the structure of a Java class? 
A. A public class must have a main method. 
B. A class can have only one private constructor. 
C. A method can have the same name as a field. 
D. A class can have overloaded static methods. 
E. The methods are mandatory components of a class. 
F. The fields need not be initialized before use. 
Answer: A,C,E

What is the name of the Java concept that uses access modifiers to protect variables and hide them within a class? 
A. Encapsulation 
B. Inheritance 
C. Abstraction 
D. Instantiation 
E. Polymorphism 
Answer: A

Which statement is true about Java byte code? 
A. It can run on any platform. 
B. It can run on any platform only if it was compiled for that platform. 
C. It can run on any platform that has the Java Runtime Environment. 
D. It can run on any platform that has a Java compiler. 
E. It can run on any platform only if that platform has both the Java Runtime Environment and a Java compiler. 
Answer: D

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