1. What is the result of the expression true && false in Java?
Explanation: The && operator in Java represents the logical AND operation, and the result is false if any of the operands is false.
Report for correction2. What is the result of the following code snippet?javaCopy codeint i = 1;while (i <= 5) { System.out.print(i + " "); i++;}
Explanation: The while loop prints the values of i from 1 to 5.
Report for correction3. Which Java keyword is used for method overriding?
Explanation: The @Override annotation is used in Java to indicate that a method is intended to override a method from its superclass.
Report for correction4. What happens if the condition in a do-while loop is false initially?
Explanation: In a do-while loop, the loop body is executed at least once, even if the condition is false initially.
Report for correction5. Which Java access modifier allows a member to be accessed only within its own class?
Explanation: The private access modifier restricts access to members only within the same class.
Report for correction6. Which control flow statement is used to execute a block of code repeatedly as long as a condition is true?
Explanation: The do-while loop in Java repeatedly executes a block of code as long as the specified condition is true.
Report for correction7. What does the switch statement evaluate to determine which case to execute?
Explanation: The switch statement in Java evaluates an integer expression to determine which case to execute.
Report for correction8. What is the result of the expression 5 / 0 in Java?
Explanation: Attempting to divide by zero in Java results in an error or exception.
Report for correction9. Which control flow statement is used for making decisions based on a condition?
Explanation: The if-else statement in Java allows you to make decisions based on a condition.
Report for correction10. What is the purpose of the continue statement in a loop?
Explanation: The continue statement is used to skip the current iteration of a loop and continue with the next one.
Report for correction11. What is the role of the break statement in a loop?
Explanation: The break statement is used to exit a loop prematurely in Java.
Report for correction12. In a for loop, what does the initialization statement do?
Explanation: The initialization statement in a for loop is responsible for initializing loop variables before the loop starts.
Report for correction13. What is the role of the default case in a switch statement?
Explanation: The default case in a switch statement is executed when none of the other cases match the expression value.
Report for correction14. What is the purpose of the this keyword in Java?
Explanation: The this keyword in Java is used to refer to the current instance of the class.
Report for correction15. What is the purpose of the super keyword in Java?
Explanation: The super keyword in Java is used to call a method or access a member from the superclass.
Report for correction16. What is the Java package that contains classes for input and output operations?
Explanation: The java.io package in Java contains classes for input and output operations, such as reading and writing files.
Report for correction17. What is the result of the following code snippet?javaCopy codeint x = 10;if (x > 5) { System.out.println("x is greater than 5");} else { System.out.println("x is not greater than 5");}
Explanation: The condition x > 5 is true, so the code inside the if block is executed.
Report for correction18. Which control flow statement is used to specify a default case in a switch statement?
Explanation: In a switch statement, the default case is executed if none of the other cases match the expression value.
Report for correction19. In Java, how do you specify multiple conditions in a single if statement?
Explanation: You can specify multiple conditions in a single if statement using the logical AND operator (&&) to combine them.
Report for correction20. Which Java loop is used when you want to execute a block of code at least once?
Explanation: The do-while loop in Java is used when you want to execute a block of code at least once, as the condition is checked after the loop body.
Report for correction21. Which control flow statement is used to execute a block of code repeatedly for a specified number of times?
Explanation: The for loop in Java is used to execute a block of code for a specified number of times.
Report for correction22. What is the purpose of control flow statements in Java?
Explanation: Control flow statements in Java are used to determine the order in which statements are executed in a program.
Report for correction23. What is the purpose of the else if statement in Java?
Explanation: The else if statement in Java allows you to specify an alternative condition to be checked if the preceding if condition is false.
Report for correction24. How can you exit a while loop prematurely?
Explanation: The break statement can be used to exit a while loop prematurely in Java.
Report for correction25. Which control flow statement is used to handle exceptions in Java?
Explanation: The try-catch statement is used to handle exceptions (errors) in Java.
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