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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: D
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: C
Q53. Given:
What is the result?
A. 7
B. 12
C. 19
D. Compilation fails
E. An exception is thrown at run time
Answer: B
Q54. Given:
What will be the output?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
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: C
Q56. Given:
What is the result?
A. One
B. Two
C. Three
D. Compilation fails
Answer: C
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: D
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: D
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: B