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Question ID 3675

A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/*.jar games.Chess Bob's CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?

 

Option A

A.    /test/Chess.class
 

Option B

B.    /home/bob/Chess.class
 

Option C

C.    /test/games/Chess.class
 

Option D

D.    /usr/lib/games/Chess.class
 

Option E

E.    /home/bob/games/Chess.class
 

Option F

F.    inside jarfile /opt/java/lib/Games.jar (with a correct manifest)
 

Correct Answer C
Explanation


Question ID 3676

Given:
3.    interface Animal { void makeNoise(); }
4.    class Horse implements Animal {
5.    Long weight = 1200L;
6.    public void makeNoise() { System.out.println("whinny"); }
7.    }
8.    public class Icelandic extends Horse {
9.    public void makeNoise() { System.out.println("vinny"); }
10.    public static void main(String[] args) {
11.    Icelandic i1 = new Icelandic();
12.    Icelandic i2 = new Icelandic();
13.    Icelandic i3 = new Icelandic();
14.    i3 = i1; i1 = i2; i2 = null; i3 = i1;
15.    }
16.    }
When line 15 is reached, how many objects are eligible for the garbage collector?
 

Option A

A. 0
 

Option B

B.    1
 

Option C

C.    2
 
 

Option D


D.    3
 

Option E

E.    4

Correct Answer E
Explanation

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