Question

1. What does a Java compiler do?
Select one:
a. Runs Java programs
b. Translates byte code in ".class" files into machine
language
c. Translates source code in ".class" files into
machine language
d. Translates source code in ".java" files into Java
byte code in ".class" files
e. Translates source code in ".java" files into machine language
2. A subclass will _____ one superclass.
Select one:
a. abstract
b. extend
c. implement
d. inherit
e. override

3. Consider the following line of Java code.
System.out.println("Hello, World!");
Which one of the following does NOT describe '"Hello,
World!"'?
Select one:
a. a declaration
b. an expression
c. a literal
d. a parameter
e. a statement

4.Consider the following line of Java code.
System.out.println("Hello, World!");
"System" is which of the following?
Select one:
a. a class
b. a method (subroutine)
c. an object
d. a parameter
e. a statement
5.What is the output of the following Java program?
interface Food {
public void printFlavor();
}
class Pepper extends Food {
public void printFlavor() {
System.out.println("spicy"); }
}
public class Lunch {
public static void main(String[]
args) {
Food pepper = new Pepper();
pepper.printFlavor();
}
}
Select one:
a. bland
b. bland
spicy
c. no output
d. spicy
e. the program does not compile

6.Consider the following Java program, which one of the
following best describes "pepper"?

public class Food {
static int count;
private String flavor = "sweet";
Food() { count++; }
void setFlavor(String s) { flavor =
s; }
String getFlavor() { return flavor;
}
static public void main(String[]
args) {
Food pepper = new Food();
System.out.println(pepper.getFlavor());
}
}
Select one:
a. an object
b. a reference
c. null
d. sweet
e. The program does not compile.

7. Which one of the following does NOT describe an
ArrayList?
Select one:
a. It can be used in a for-each loop.
b. It has a numbered sequence of elements.
c. It provides efficient random access to its elements.
d. Its elements can be a primitive type.
e. The number of its elements can change.

8. In a while loop, how many times does the continuation
condition run?
Select one:
a. At least once, at the beginning of each iteration.
b. At least once, at the end of each iteration.
c. Exactly once.
d. Zero or more times, at the beginning of each
iteration.
e. Zero or more times, at the end of each iteration.

Answer 1

The answer to questions is as follows:

1.The answer to the first question is Translates source code in ".java" files into Java
byte code in ".class" files

2. The answer to the second question is inherit

3. The answer to the third question is a declaration

4. The answer to the fourth question is a class

5. The answer to the fifth question is spicy

6. The answer to the sixth question is sweet

7. The answer to the seventh question is Its elements can be a primitive type.

8. The answer to the eight question is Zero or more times, at the beginning of each
iteration.