Flow Control — Part 1 MCQs with Explanations

In giving a program for loop will be break when i=10. Since after for only one statement execute ( j += i;) because brace is not mentioned and after that print statement will execute and print i=10

bad operand types for binary operator '&&' if(x && y)

Initially 'x' = 3 and y =4 when switch statement execute switch(x + 3) case 6 will be executed and initialize y = 0 and after that case 7 will be executed (because there is no break statement so it will execute all the case) and initialize y = 1 and after that default case execute which add 1 in y and y become 2 .

Equals() method for the integer wrappers will only return true if the two primitive types and the two values are equal.

x reaches the value of 11, at which point the while test fails. x is then incremented (after the comparison test!), and the println() method runs. Hence, choice A, B, D, E, and F are incorrect based on the above point.

Initially i=10, when it reaches to while statement i++ <= 10 here i = 10 so condition become ture. For next use i become 11 and i++ statment will excuted and i become 12. Then again its go to while loop and check i++ <=10 here i = 12 so condition becomes fail and i become 13. Therefore when print statement will execute after while loop it Print 13

To execute a block of code conditionally is the correct answer to “What is the purpose of the "if" statement in Java”. This question is standard in competitive examination syllabi for Flow Control.

>< is the correct answer to “Which of the following is not a valid comparison operator in Java”. This question is standard in competitive examination syllabi for Flow Control.

Hello is the correct answer to “What is the output of the following code snippet? int x = 5; if (x > 3) { System.out.println("Hello"); }”. This question is standard in competitive examination syllabi for Flow Control.

break is the correct answer to “In Java, which statement is used to exit a loop prematurely”. This question is standard in competitive examination syllabi for Flow Control.

To perform different actions based on the value of an expression is the correct answer to “What is the purpose of the "switch" statement in Java”. This question is standard in competitive examination syllabi for Flow Control.

Handling cases where none of the specified cases match is the correct answer to “What is the default case in a "switch" statement used for”. This question is standard in competitive examination syllabi for Flow Control.

for loop is the correct answer to “In Java, which loop is suitable when you want to execute a block of code a specific number of times”. This question is standard in competitive examination syllabi for Flow Control.

1 2 3 4 5 is the correct answer to “What is the result of the following code snippet? int i = 1; while (i <= 5) { System.out.print(i + " "); i++; }”. This question is standard in competitive examination syllabi for Flow Control.

The loop body is executed at least once is the correct answer to “Which of the following is true about the "do-while" loop in Java”. This question is standard in competitive examination syllabi for Flow Control.

Skips the current iteration of a loop and continues to the next is the correct answer to “In Java, what does the "continue" statement do”. This question is standard in competitive examination syllabi for Flow Control.

0 2 4 is the correct answer to “What is the output of the following code snippet? int j = 0; while (j < 5) { System.out.print(j + " "); j += 2; }”. This question is standard in competitive examination syllabi for Flow Control.

Exits the loop prematurely is the correct answer to “In Java, what does the "break" statement do in a loop”. This question is standard in competitive examination syllabi for Flow Control.

Iterates through elements of an array or collection is the correct answer to “What is the purpose of the "for-each" loop in Java”. This question is standard in competitive examination syllabi for Flow Control.

The default case to execute when no other case matches is the correct answer to “In Java, what does the "default" keyword refer to in a "switch" statement”. This question is standard in competitive examination syllabi for Flow Control.

10 8 6 4 2 is the correct answer to “What is the result of the following code snippet? int k = 10; do { System.out.print(k + " "); k -= 2; } while (k > 0);”. This question is standard in competitive examination syllabi for Flow Control.

while loop is the correct answer to “In Java, which loop is used when you want to execute a block of code as long as a condition is true”. This question is standard in competitive examination syllabi for Flow Control.

0 1 3 4 is the correct answer to “What is the output of the following code snippet? for (int m = 0; m < 5; m++) { if (m == 2) { continue; } System.out.print(m + " "); }”. This question is standard in competitive examination syllabi for Flow Control.

An expression of integral or enumerated type is the correct answer to “In Java, what does the "switch" statement evaluate to determine which case to execute”. This question is standard in competitive examination syllabi for Flow Control.

To execute one block of code if a condition is true and another block if it's false is the correct answer to “What is the purpose of the "if-else" statement in Java”. This question is standard in competitive examination syllabi for Flow Control.

while (true) { /* loop body */ } is the correct answer to “Which of the following is a valid way to create an infinite loop in Java”. This question is standard in competitive examination syllabi for Flow Control.

To evaluate multiple conditions and execute the corresponding block of code is the correct answer to “In Java, what is the purpose of the "if-else if-else" statement”. This question is standard in competitive examination syllabi for Flow Control.

0 1 2 3 4 is the correct answer to “What is the output of the following code snippet? int n = 5; for (int i = 0; i < n; i++) { System.out.print(i + " "); }”. This question is standard in competitive examination syllabi for Flow Control.

do-while loop is the correct answer to “In Java, which loop is used when you want to execute a block of code at least once”. This question is standard in competitive examination syllabi for Flow Control.

The block of code to execute if the condition is false is the correct answer to “What does the "else" statement in an "if-else" statement block indicate”. This question is standard in competitive examination syllabi for Flow Control.

Skips the current iteration of a loop and continues to the next is the correct answer to “In Java, what does the "continue" statement do in a loop”. This question is standard in competitive examination syllabi for Flow Control.

Exits the switch statement prematurely is the correct answer to “What is the purpose of the "break" statement in a "switch" statement”. This question is standard in competitive examination syllabi for Flow Control.

Provides a block of code to execute when none of the cases match is the correct answer to “In Java, what does the "default" case in a "switch" statement do”. This question is standard in competitive examination syllabi for Flow Control.

OneTwoDefault is the correct answer to “What is the output of the following code snippet? int p = 3; switch (p) { case 1: System.out.print("One"); case 2: System.out.print("Two"); default: System.out.print("Default"); }”. This question is standard in competitive examination syllabi for Flow Control.

Iterating over elements of an array or collection is the correct answer to “In Java, what is the purpose of the "for-each" loop”. This question is standard in competitive examination syllabi for Flow Control.

break is the correct answer to “Which keyword is used to exit a loop in Java”. This question is standard in competitive examination syllabi for Flow Control.

6 is the correct answer to “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); } }”. This question is standard in competitive examination syllabi for Flow Control.

switch, if is the correct answer to “In java, ............ can only test for equality, where as .......... can evaluate any type of the Boolean expression.”. This question is standard in competitive examination syllabi for Flow Control.

0 6 1 7 2 8 3 8 is the correct answer to “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 ); } }”. This question is standard in competitive examination syllabi for Flow Control.

NumberSeven NotSeven is the correct answer to “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”. This question is standard in competitive examination syllabi for Flow Control.