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Detail Form
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1.
Given:
1. abstract class A {}
2. class B {}
3. interface C {}
4. interface D {}
5. // insert code here
Which, inserted at line 5, results in a compilation failure?
2.
Why should package names in Java be unique?
3.
Given:
18. String s = " abcdcba ";
19. int x = 2;
20. s = s.trim();
21. if (s.length() < 8) {
22. x = s.indexOf('c', 3);
23. }
24. System.out.println("x = " + x);
What is the result?
4.
Given:
3. int calc() {
4. long x = 40L;
5. int i = 30;
6. i = x;
7. System.out.println("result is: " + i);
8. }
What is the result of calling calc()?
5.
Which is an appropriate description of session beans?
6.
Which is NOT associated with the web tier in a J2EE web-based application?
7.
Which option will correctly initialize the property com.example.property to someValue when invoking java?
8.
Which is an advantage of applets over HTML/JavaScript clients?
9.
Why should package names in Java be unique?
10.
Given:
1. public class Boat{
2. // insert code here
3. public void setGas(int v){
4. gas = v;
5. }
6. }
Which, inserted at line 2, is valid and demonstrates encapsulation?