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Q51. View the Exhibit. 

public class Hat { 

public int ID =0; 

public String name = "hat"; 

public String size = "One Size Fit All"; 

public String color=""; 

public String getName() { return name; } 

public void setName(String name) { 

this.name = name; 

Given 

public class TestHat { 

public static void main(String[] args) { 

Hat blackCowboyHat = new Hat(); 

Which statement sets the name of the Hat instance? 

A. blackCowboyHat.setName = "Cowboy Hat"; 

B. setName("Cowboy Hat"); 

C. Hat.setName("Cowboy Hat"); 

D. blackCowboyHat.setName("Cowboy Hat"); 

Answer:


Q52. Given: 

What is the result? 

A. The program prints nothing 

B. d 

C. A S StringIndexOutOfBoundsException is thrown at runtime. 

D. AnArrayIndexOutOfBoundsException is thrown at runtime. 

E. A NullPointerException is thrown at runtime. 

Answer:


Q53. Given: 

What is the result? 

A. 7 

B. 12 

C. 19 

D. Compilation fails 

E. An exception is thrown at run time 

Answer:


Q54. Given: 

What will be the output? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q55. Which statement will empty the contents of a StringBuilder variable named sb? 

A. sb.deleteAll(); 

B. sb.delete(0, sb.size()); 

C. sb.delete(0, sb.length()); 

D. sb.removeAll(); 

Answer:


Q56. Given: 

What is the result? 

A. One 

B. Two 

C. Three 

D. Compilation fails 

Answer:


Q57. Given the code fragment: 


Q58. Given the code fragment: 

What could expression1 and expression2 be, respectively, in order to produce output –8, 16? 

A. + +a, - -b 

B. + +a, b- 

C. A+ +, - - b 

D. A + +, b - 

Answer:


Q59. Given: 

What is the result? 

A. 1 1 1 

B. 1 2 3 

C. 2 3 4 

D. Compilation fails 

E. The loop executes infinite times 

Answer:


Q60. Given the code fragment: 

String h1 = "Bob"; 

String h2 = new String ("Bob"); 

What is the best way to test that the values of h1 and h2 are the same? 

A. if (h1 = = h2) 

B. if (h1.equals(h2)) 

C. if (h1 = = h2) 

D. if (h1.same(h2)) 

Answer: