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Java Programming : Compilation and Execution: Multiple Choice


Answer the following questions about Java syntax and mistakes which can cause compilation errors, as well as the output generated by sample programs.

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Multiple choice

Your Performance  

1.

Which javadoc tag is used to denote a comment for a method parameter?

  @parameter

  @method

  @param

  @value

  @argument

  Half-n-half Clue
 

2.

Examine the following code snippets to identify the legal loop constructs:
(A) for (int i = 22, int j = 0; i + j > 11; i = i-3, j++)

  (B)

  (A) & (D)

  (A)

  (A) & (C)

  Half-n-half Clue
 

3.

Consider the following code:
int i = 1;
switch(c)

  output will be One

  code is illegal and therefore will not compile

  output will be One followed by Two

  output will be One, followed by Two, and then followed by Three

  Half-n-half Clue
 

4.

Determine the output when the value of x is zero:
if(x >= 0)
if(x > 0)
System.out.println("x is positive");
else
System.out.println("x is negative");

  "x is positive" and "x is negative"

  "x is negative"

  None of these

  "x is positive"

  Half-n-half Clue
 

5.

With javadoc, which of the following denotes a javadoc comment?

  //#

  /*

  /**

  //**

  Half-n-half Clue
 

6.

What will be the output of the following program?
class Main2

  XXX followed by YYY

  YYY

  XXX

  Error. Won't compile

  Half-n-half Clue
 

7.

To print the value of a variable "x" of type int, which of the following expressions can be used:
(A) System.out.println("x = " + x);
(B) System.out.println("x = " + String.valueOf(x));
(C) System.out.println("x = " + Integer.toString(x));
(D) System.out.println("x = " + (new Integer(x)).toString());

  (C) and (D)

  (A), (B), (C) and (D)

  (B) and (D)

  (B), (C) and (D)

  Half-n-half Clue
 


 
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