Flow Control MCQ

Test your knowledge with important Flow Control MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Flow Control MCQs at Bissoy

• What will be the result?<br><pre><code class="java">int i = 10;while(i++ </code></pre>
  ক

  10

  খ

  11

  গ

  12

  ঘ

  13

  ঙ

  Line 5 will be never reached.
• What will be the result of compiling and running the following code:<br><pre><code class="java">public class Test{ public static void main(String... args) throws Exception{ Integer i = 34; int l = 34; if(i.equals(l)){ System.out.println("true"); }else{ System.out.println("false"); } }}</code></pre>
  ক

  true

  খ

  false

  গ

  Compiler error

  ঘ

  None of these
• Which of the following for loops will be an infinite loop?
  ক

  for(; ;)

  খ

  for(i=0 ; i

  গ

  for(i=0; ; i++)

  ঘ

  All of the above
• What is the printout of the following switch statement?<br><pre><code class="java">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);}</code></pre>
  ক

  abcd

  খ

  aa

  গ

  a

  ঘ

  ab

  ঙ

  abc
• In java, ............ can only test for equality, where as .......... can evaluate any type of the Boolean expression.
  ক

  switch, if

  খ

  if, switch

  গ

  if, break

  ঘ

  continue, if
• Which keyword is used to exit a loop in Java?
  ক

  continue

  খ

  return

  গ

  exit

  ঘ

  break
• In Java, what is the purpose of the "for-each" loop?
  ক

  Defining methods

  খ

  Declaring variables

  গ

  Iterating over elements of an array or collection

  ঘ

  Performing mathematical calculations
• What is the output of the following code snippet?<br><br><code>int p = 3;<br>switch (p) {<br> case 1: System.out.print("One");<br> case 2: System.out.print("Two");<br> default: System.out.print("Default");<br>}</code>
  ক

  Default

  খ

  OneTwoDefault

  গ

  One

  ঘ

  Default
• In Java, what does the "default" case in a "switch" statement do?
  ক

  Indicates the end of the switch statement

  খ

  Repeats the switch statement

  গ

  Provides a block of code to execute when none of the cases match

  ঘ

  Throws an exception
• What is the purpose of the "break" statement in a "switch" statement?
  ক

  Terminates the program

  খ

  Repeats the case statements

  গ

  Exits the loop containing the switch statement

  ঘ

  Exits the switch statement prematurely
• In Java, what does the "continue" statement do in a loop?
  ক

  Skips the current iteration of a loop and continues to the next

  খ

  Exits the loop immediately

  গ

  Repeats the loop from the beginning

  ঘ

  Terminates the program
• What does the "else" statement in an "if-else" statement block indicate?
  ক

  A syntax error

  খ

  A comment

  গ

  The end of the if statement

  ঘ

  The block of code to execute if the condition is false
• In Java, which loop is used when you want to execute a block of code at least once?
  ক

  switch loop

  খ

  for loop

  গ

  do-while loop

  ঘ

  while loop
• What is the output of the following code snippet?<br><br><code>int n = 5;<br>for (int i = 0; i System.out.print(i + " ");<br>}</code>
  ক

  5 4 3 2 1

  খ

  0 1 2 3 4

  গ

  1 2 3 4 5

  ঘ

  5 4 3 2 1
• In Java, what is the purpose of the "if-else if-else" statement?
  ক

  To create loops

  খ

  To define methods

  গ

  To evaluate multiple conditions and execute the corresponding block of code

  ঘ

  To declare variables
• Which of the following is a valid way to create an infinite loop in Java?
  ক

  switch (1) { /* loop body */ }

  খ

  do { /* loop body */ } while (false);

  গ

  for (int i = 0; i

  ঘ

  while (true) { /* loop body */ }
• What is the purpose of the "if-else" statement in Java?
  ক

  To execute one block of code if a condition is true and another block if it's false

  খ

  To declare variables

  গ

  To create loops

  ঘ

  To define methods
• In Java, what does the "switch" statement evaluate to determine which case to execute?
  ক

  A boolean expression

  খ

  A string value

  গ

  A floating-point number

  ঘ

  An expression of integral or enumerated type
• What is the output of the following code snippet?<br><br><code>for (int m = 0; m if (m == 2) {<br> continue;<br> }<br> System.out.print(m + " ");<br>}</code>
  ক

  0 2 4

  খ

  2 4

  গ

  0 1 3 4

  ঘ

  0 1 2 3 4
• In Java, which loop is used when you want to execute a block of code as long as a condition is true?
  ক

  for loop

  খ

  while loop

  গ

  switch loop

  ঘ

  for loop
• What is the result of the following code snippet?<br><br><code>int k = 10;<br>do {<br> System.out.print(k + " ");<br> k -= 2;<br>} while (k &gt; 0);</code>
  ক

  10 8 6 4

  খ

  2 4 6 8 10

  গ

  10 8 6 4 2

  ঘ

  1 3 5 7 9
• In Java, what does the "default" keyword refer to in a "switch" statement?
  ক

  The default loop condition

  খ

  A reserved keyword with no specific meaning

  গ

  The default value of a variable

  ঘ

  The default case to execute when no other case matches
• What is the purpose of the "for-each" loop in Java?
  ক

  Iterates through elements of an array or collection

  খ

  Performs mathematical calculations

  গ

  Declares variables

  ঘ

  Defines methods
• In Java, what does the "break" statement do in a loop?
  ক

  Repeats the loop

  খ

  Restarts the loop

  গ

  Pauses the loop

  ঘ

  Exits the loop prematurely
• What is the output of the following code snippet?<br><br><code>int j = 0;<br>while (j System.out.print(j + " ");<br> j += 2;<br>}</code>
  ক

  5 4 3 2 1

  খ

  2 4 6 8 10

  গ

  0 2 4

  ঘ

  0 1 2 3 4
• In Java, what does the "continue" statement do?
  ক

  Repeats the loop from the beginning

  খ

  Skips the current iteration of a loop and continues to the next

  গ

  Terminates the program

  ঘ

  Repeats the loop from the beginning
• Which of the following is true about the "do-while" loop in Java?
  ক

  It is similar to the "while" loop

  খ

  It does not support a loop condition

  গ

  The loop body is executed at least once

  ঘ

  It can only be used for counting
• What is the result of the following code snippet?<br><br><code>int i = 1;<br>while (i System.out.print(i + " ");<br> i++;<br>}</code>
  ক

  5 4 3 2

  খ

  5 4 3 2 1

  গ

  1 2 3 4

  ঘ

  1 2 3 4 5
• In Java, which loop is suitable when you want to execute a block of code a specific number of times?
  ক

  for loop

  খ

  while loop

  গ

  do-while loop

  ঘ

  switch loop
• What is the default case in a "switch" statement used for?
  ক

  Handling the case with value 0

  খ

  Providing a default value for a variable

  গ

  Terminating the switch statement

  ঘ

  Handling cases where none of the specified cases match