Sail E0 Webinar

MCQs

Total Questions : 12 | Page 1 of 2 pages
Question 1. Int ++a = 100 ; System.out.println( ++a ) ;What will be the output of the above fraction of code ?
  1.    Compiler displays error as ++a is not a valid identifier
  2.    Displays error as ++a is not enclosed in double quotes in println statement
  3.    100
  4.    None of these
 Discuss Question
Answer: Option A. -> Compiler displays error as ++a is not a valid identifier
Question 2. What is the output of the following program ?class Numbers{ public static void main(String args[]){ int a=20, b=10; if((a < b) && (b++ < 25)){ System.out.println("This is any language logic"); } System.out.println(b); }}
  1.    Compilation Error
  2.    12
  3.    11
  4.    10
 Discuss Question
Answer: Option D. -> 10
Question 3. Select from among the following character escape code which is not available in Java.
  1.    \t
  2.    \\
  3.    \r
  4.    \a
  5.    \v
 Discuss Question
Answer: Option D. -> \a
Question 4. What will be the output?if(1 + 1 + 1 + 1 + 1 == 5){ System.out.print("TRUE");}else{ System.out.print("FLASE");}
  1.    TRUE
  2.    FALSE
  3.    None of these
  4.    Compiler Error
 Discuss Question
Answer: Option A. -> TRUE
Question 5. Int x = 0, y = 0 , z = 0 ;x = (++x + y-- ) * z++;What will be the value of "x" after execution ?
  1.    1
  2.    2
  3.    -2
  4.    -1
  5.    0
 Discuss Question
Answer: Option E. -> 0
Question 6. What will be the output?public class Test{ public static void main(String args[]){ int a = 42; double b = 42.25; System.out.print((a%10)+" "+(b%10)); }}
  1.    2 2.5
  2.    4.2 4.225
  3.    2 4.225
  4.    42 42.5
  5.    Compilation Error
 Discuss Question
Answer: Option A. -> 2 2.5
Question 7. Which of the following is the correct expression that evaluates to true if the number x is between 1 and 100 or the number is negative?
  1.    ((x < 100) && (x > 1)) && (x < 0)
  2.    ((x < 100) && (x > 1)) || (x < 0)
  3.    (1 > x > 100) || (x < 0)
  4.    1 < x < 100 || x < 0
 Discuss Question
Answer: Option B. -> ((x < 100) && (x > 1)) || (x < 0)
Question 8. Determine output:public class Test{ public static void main(String... args){ int a=5 , b=6, c=7; System.out.println("Value is "+ b + c); System.out.println(a + b + c); System.out.println("String " + (b+c)); }}
  1.    Value is 13 18 String 13
  2.    Value is 67 18 String 13
  3.    Value is 13 18 String
  4.    None of these
  5.    Compilation fails
 Discuss Question
Answer: Option B. -> Value is 67 18 String 13
Question 9. What will be the output after compiling and running following code?1. public class Test{2. public static void main(String... args){3. int x =5;4. x *= 3 + 7;5. System.out.println(x);6. }7. }
  1.    10
  2.    None of these
  3.    22
  4.    50
  5.    Compilation fails with an error at line 4
 Discuss Question
Answer: Option D. -> 50
Question 10. Public class Test{      public static void main(String args[]){            System.out.print(""=="");            System.out.print(" ");            System.out.print("A"=="A");            System.out.print(" ");            System.out.print("a==A");      }}
  1.    true true a==A
  2.    None of these
  3.    true true false
  4.    "==" A"=="A a==A
  5.    Compilation Fails
 Discuss Question
Answer: Option A. -> true true a==A

Latest Videos

Latest Test Papers