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MCQs

Total Questions : 42 | Page 1 of 5 pages
Question 1. Determine output:
public class Test{
public static void main(String args[]){
int i;
for(i = 1; i < 6; i++){
if(i > 3) continue ;
}
System.out.println(i);
}
}
  1.    2
  2.    3
  3.    4
  4.    5
  5.    6
 Discuss Question
Answer: Option E. -> 6
Question 2. In java, ............ can only test for equality, where as .......... can evaluate any type of the Boolean expression.
  1.    switch, if
  2.    if, switch
  3.    if, break
  4.    continue, if
 Discuss Question
Answer: Option A. -> switch, if
Question 3. What will be the output of the following program?
public class Test{
public static void main(String args[]){
int i = 0, j = 5 ;
for( ; (i < 3) && (j++ < 10) ; i++ ){
System.out.print(" " + i + " " + j );
}
System.out.print(" " + i + " " + j );
}
}
  1.    0 6 1 7 2 8 3 8
  2.    0 6 1 7 2 8 3 9
  3.    0 6 1 5 2 5 3 5
  4.    Compilation Error
 Discuss Question
Answer: Option A. -> 0 6 1 7 2 8 3 8
Question 4. Consider the following program written in Java.
class Test{
public static void main(String args[]){
int x=7;
if(x==2); // Note the semicolon
System.out.println("NumberSeven");
System.out.println("NotSeven");
}
}
What would the output of the program be?
  1.    NumberSeven NotSeven
  2.    NumberSeven
  3.    NotSeven
  4.    Error
  5.    7
 Discuss Question
Answer: Option A. -> NumberSeven NotSeven
Question 5. Determine output:
public class Test{
public static void main(String args[]){
int i, j;
for(i=1, j=0;i
  1.    10
  2.    11
  3.    9
  4.    20
  5.    None of these
 Discuss Question
Answer: Option A. -> 10
Question 6. What will be the output?
public class Test{
public static void main(String[] args){
int x=10, y=0;
if(x && y){
System.out.print("TRUE");
}
else{
System.out.print("FALSE");
}
}
}
  1.    FALSE
  2.    TRUE
  3.    Compilation Error
  4.    Runtime Error
 Discuss Question
Answer: Option C. -> Compilation Error
Question 7. What is the printout of the following switch statement?
char ch = 'a';
switch (ch){
case 'a':
case 'A': System.out.print(ch); break;
case 'b':
case 'B': System.out.print(ch); break;
case 'c':
case 'C': System.out.print(ch); break;
case 'd':
case 'D': System.out.print(ch);
}
  1.    abcd
  2.    aa
  3.    a
  4.    ab
  5.    abc
 Discuss Question
Answer: Option C. -> a
Question 8. What will be the value of y after execution of switch statement?
public class Test{
public static void main(String[] args){
int x = 3, y = 4;
switch(x + 3){
case 6: y = 0;
case 7: y = 1;
default: y += 1;
}
}
}
  1.    1
  2.    2
  3.    3
  4.    4
  5.    0
 Discuss Question
Answer: Option B. -> 2
Question 9. Choose the correct statement in context of the following program code.
public class Test{
public static void main(String[] args){
double sum = 0;
for(double d = 0; d < 10;){
d += 0.1;
sum += sum + d;
}
}
}
  1.    The program has a compile error because the adjustment is missing in the for loop.
  2.    The program has a compile error because the control variable in the for loop cannot be of the double type.
  3.    The program runs in an infinite loop because d
  4.    The program compiles and runs fine.
 Discuss Question
Answer: Option D. -> The program compiles and runs fine.
Question 10. How many times will the following code print "Welcome to Examveda"?
int count = 0;
do {
System.out.println("Welcome to Examveda");
count++;
} while (count < 10);
  1.    8
  2.    9
  3.    10
  4.    11
  5.    0
 Discuss Question
Answer: Option C. -> 10

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