310-025 Sun - Braindumps.com.ua: question list for "Sun Certified Java Programmer", page: 5

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Sun 310-025: Sun Certified Java Programmer

#41. Given:

 1. public class X ( 
 2. public object m () { 
 3. object o = new float (3.14F); 
 4. object [] oa = new object [1]; 
 5. oa[0]= o; 
 6. o = null; 
 7. return oa[0]; 
 8. } 
 9. }

When is the float object created in line 3,eligible for garbage collection?

#42. Which method is an appropriate way to determine the cosine of 42 degrees?

#43. You need to store elements in a collection that guarantees that no duplicates are stored and all elements can be accessed in natural order. Which interface provides that capability?

#44. Which statement is true for the class java.util.HashSet?

#45. Given:

 1. public class IfTest ( 
 2. public static void main(string[]args) { 
 3. int x = 3; 
 4. int y = 1; 
 5. if (x = y) 
 6. system.out.printIn(“Not equal”); 
 7. else 
 8. system.out.printIn(“Equal”); 
 9. } 
 10. )

What is the result?

#46. Exhibit:

 1. public class test ( 
 2. public static void main(string args[]) { 
 3. int 1= 0; 
 4. while (i) { 
 5. if (i==4) { 
 6. break; 
 7. ) 
 8. ++i; 
 9. ) 
 10. 
 11. ) 
 12. )

What is the value of i at line 10?

#47. Given:

 3. int i= 1, j= 10 ; 
 4. do ( 
 5. if (i++> --j) continue; 
 6. ) while (i<5);

After execution, what are the values for I and j?

#48. Given:

 1. switch (i) { 
 2. default: 
 3. System.out.printIn(“Hello”); 
 4. )

What are the two acceptable types for the variable i? (Choose Two)

#49. Given:

 1. public class foo { 
 2. public static void main (string[]args) 
 3. try {return;} 
 4. finally {system.out.printIn(“Finally”);} 
 5. } 
 6. )

What is the result?

#50. Exhibit:

 1. import java.io.IOException; 
 2. public class ExceptionTest( 
 3. public static void main (String[]args) 
 4. try ( 
 5. methodA(); 
 6. ) catch (IOException e) ( 
 7. system.out.printIn(“Caught IOException”); 
 8. ) catch (Exception e) ( 
 9. system.out.printIn(“Caught Exception”); 
 10. ) 
 11. ) 
 12. public void methodA () { 
 13. throw new IOException (); 
 14. ) 
  15. )

What is the result?

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] ... [16]

gen. 0.17

Server date 06:32 10-01-2009

Sun 310-025

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