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www.cert24.com,test dumps, practice test, pdf SUN CX-310-065 cert24
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CX-310-065 Sun Certified Programmer for the Java 2 Platform. SE6.0 We believe in helping our customers achieve their goals. For this reason, we take great care while preparing our Questions and Answers , Core Administration. Our practice tests Administration are prepared with the help of highly professional people from the industry, so we benefit from their vast experience and knowledge.
QUESTION NO: 1
Given:
11. public class Commander {
12. public static void main(String[] args) {
13. String myProp = /* insert code here */
14. System.out.println(myProp);
15. }
16. }
and the command line:
java -Dprop.custom=gobstopper Commander Which two, placed on line 13, will produce the output gobstopper? (Choose two.)
A. System.load(“prop.custom”);
B. System.getenv(“prop.custom”);
C. System.property(“prop.custom”);
D. System.getProperty(“prop.custom”);
E. System.getProperties().getProperty(“prop.custom”);
Answer: D,E
QUESTION NO: 2
Given:
1. interface DoStuff2 {
2. float getRange(int low, int high); }
3.
4. interface DoMore {
5. float getAvg(int a, int b, int c); }
6.
7. abstract class DoAbstract implements DoStuff2, DoMore { }
8.
9. class DoStuff implements DoStuff2 {
10. public float getRange(int x, int y) { return 3.14f; } }
11.
12. interface DoAll extends DoMore {
13. float getAvg(int a, int b, int c, int d); }
What is the result?
A. The file will compile without error.
B. Compilation fails. Only line 7 contains an error.
C. Compilation fails. Only line 12 contains an error.
D. Compilation fails. Only line 13 contains an error.
E. Compilation fails. Only lines 7 and 12 contain errors.
F. Compilation fails. Only lines 7 and 13 contain errors.
G. Compilation fails. Lines 7, 12, and 13 contain errors.
Answer: A
QUESTION NO: 3
Given:
3. interface Fish { }
4. class Perch implements Fish { }
5. class Walleye extends Perch { }
6. class Bluegill { }
7. public class Fisherman {
8. public static void main(String[] args) {
9. Fish f = new Walleye();
10. Walleye w = new Walleye();
11. Bluegill b = new Bluegill();
12. if(f instanceof Perch) System.out.print(“f-p “);
13. if(w instanceof Fish) System.out.print(“w-f “);
14. if(b instanceof Fish) System.out.print(“b-f “);
15. }
16. }
What is the result?
A. w-f
B. f-p w-f
C. w-f b-f
D. f-p w-f b-f
E. Compilation fails.
F. An exception is thrown at runtime.
Answer: B
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