Java Basics (easy)

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Which of the following is a primitive datatype in Java?

object
string
integer (correct)
class

Which operator is used for incrementing the value of a variable by 1 in Java?

*
+
++ (correct)
-

Which operator is used for performing arithmetic operations in Java?

=
&&
+ (correct)
||

What does the following code snippet do?

int x = 5; x += 3;

Assigns the value 8 to x (C) Signup and view all the answers

Which of the following is a conditional statement in Java?

if (C) Signup and view all the answers

What is the purpose of the logical operator && in Java?

Perform logical AND operation (B) Signup and view all the answers

Which of the following is NOT an access specifier in Java?

package (A) Signup and view all the answers

What is the return type of a method that does not return any value?

void (C) Signup and view all the answers

What is the purpose of arguments/parameters in a method?

To pass values to the method for processing (B) Signup and view all the answers

What is the difference between function declaration and function definition in Java?

Function declaration is the prototype of the function, while function definition contains the body of the function (B) Signup and view all the answers

What happens when a method is called in Java?

The program starts searching for the function definition (B) Signup and view all the answers

What is method overloading in Java?

Defining multiple methods with the same name and different arguments (A) Signup and view all the answers

Which of the following is an alternative to if...else statement in Java?

Switch case (B) Signup and view all the answers

What is the purpose of the 'break' statement in switch case?

To terminate a specific iteration of a loop (A) Signup and view all the answers

Which type of loop in Java is entry-controlled?

For loop (B) Signup and view all the answers

What is the syntax for a method in Java?

Access_specifier return_type method_name (arguments) { Body of the method; } (B) Signup and view all the answers

What is the purpose of the 'continue' statement in a loop?

To terminate a specific iteration of a loop (C) Signup and view all the answers

Which type of loop in Java is exit-controlled?

Do...while loop (B) Signup and view all the answers

Which one of the following is an example of a class in Java?

Car (C) Signup and view all the answers

Which one of the following is an example of an object in Java?

Car (D) Signup and view all the answers

What is the syntax for defining a class in Java?

access_specifier class className { Class definition containing variables and methods; } (C) Signup and view all the answers

What is an object in Java?

An instance of a class (C) Signup and view all the answers

What are comments used for in Java?

To increase the understanding and readability of the program (D) Signup and view all the answers

What are the rules for writing a Java program?

Java uses higher CamelCase for writing class names and lower camelCase for writing method names (C) Signup and view all the answers

Which keyword is used to declare the main method in a Java program?

static (B) Signup and view all the answers

What is the purpose of the 'System.out.print()' method in Java?

To display something on the screen during program execution (A) Signup and view all the answers

What is the purpose of the 'println()' method in Java?

To move the cursor to the next line after printing (D) Signup and view all the answers

What is the role of the 'String args[]' in the main method of a Java program?

It is an array of strings that stores arguments passed by the command line (B) Signup and view all the answers

Why does the main method in a Java program have to be declared static?

To allow main() to be called without creating an object of the class (A) Signup and view all the answers

What is the purpose of the 'public' keyword in Java?

To specify the visibility of a class or method (A) Signup and view all the answers

Which of the following is a bitwise operator in Java?

& (D) Signup and view all the answers

What is the result of the expression 'x += 5' in Java?

x + 5 (B) Signup and view all the answers

Which type of loop in Java is exit-controlled?

do-while loop (B) Signup and view all the answers

What is the purpose of the '==' operator in Java?

Comparison (B) Signup and view all the answers

Which of the following is NOT a primitive datatype in Java?

String (B) Signup and view all the answers

What is the purpose of the 'else if' statement in Java?

To check multiple conditions (A) Signup and view all the answers

Which keyword is used to declare the main method in a Java program?

main (B) Signup and view all the answers

What is the purpose of the 'public' keyword in Java?

To specify the access level of a class, method, or variable (A) Signup and view all the answers

What is the purpose of the 'continue' statement in a loop?

To skip the current iteration and move to the next iteration (A) Signup and view all the answers

Which type of loop in Java is exit-controlled?

Do-while loop (C) Signup and view all the answers

What is the purpose of the logical operator && in Java?

To perform logical AND operation (D) Signup and view all the answers

What are comments used for in Java?

To explain the functionality of the code (A) Signup and view all the answers

Which keyword is used to declare a method in Java?

public (C) Signup and view all the answers

What is the return type of a method that does not return any value?

void (B) Signup and view all the answers

What is the purpose of arguments/parameters in a method?

To pass values to the method (D) Signup and view all the answers

What is the purpose of the 'println()' method in Java?

To print the value of a variable (D) Signup and view all the answers

What is method overloading in Java?

Defining multiple methods with the same name but different arguments (C) Signup and view all the answers

What is the purpose of the 'continue' statement in a loop?

To skip the current iteration of the loop and move to the next iteration (C) Signup and view all the answers

Which type of loop in Java is exit-controlled?

Do...while loop (A) Signup and view all the answers

What is the purpose of the 'continue' statement in Java?

To terminate a particular iteration of a loop (D) Signup and view all the answers

What is the purpose of the 'break' statement in Java?

To terminate the entire loop and come out of it (B) Signup and view all the answers

What is the purpose of methods in Java?

To make the program modular and simpler (B) Signup and view all the answers

What is the syntax for a method in Java?

Access_specifier return_type method_name (arguments) { Body of the method; } (C) Signup and view all the answers

Which type of loop in Java is entry-controlled?

For loop (D) Signup and view all the answers

Which one of these is a correct statement about classes and objects in Java?

A class is a blueprint or template for creating objects. (D) Signup and view all the answers

What is the purpose of comments in Java?

To increase the understanding and readability of the program. (D) Signup and view all the answers

Which of the following is a rule for writing a Java program?

Variable names should start with an alphabet or an underscore (_). (D) Signup and view all the answers

What is the role of the 'String args[]' in the main method of a Java program?

It is used to pass command-line arguments to the program. (B) Signup and view all the answers

What is the purpose of the 'public' keyword in Java?

It is an access specifier that allows the method to be accessed from anywhere. (A) Signup and view all the answers

What is an alternative to the if...else statement in Java?

The switch statement. (A) Signup and view all the answers

Java Basics (easy)

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Questions and Answers

Which of the following is a primitive datatype in Java?

Which operator is used for incrementing the value of a variable by 1 in Java?

Which operator is used for performing arithmetic operations in Java?

What does the following code snippet do? int x = 5; x += 3;

Which of the following is a conditional statement in Java?

What is the purpose of the logical operator && in Java?

Which of the following is NOT an access specifier in Java?

What is the return type of a method that does not return any value?

What is the purpose of arguments/parameters in a method?

What is the difference between function declaration and function definition in Java?

What happens when a method is called in Java?

What is method overloading in Java?

Which of the following is an alternative to if...else statement in Java?

What is the purpose of the 'break' statement in switch case?

Which type of loop in Java is entry-controlled?

What is the syntax for a method in Java?

What is the purpose of the 'continue' statement in a loop?

Which type of loop in Java is exit-controlled?

Which one of the following is an example of a class in Java?

Which one of the following is an example of an object in Java?

What is the syntax for defining a class in Java?

What is an object in Java?

What are comments used for in Java?

What are the rules for writing a Java program?

Which keyword is used to declare the main method in a Java program?

What is the purpose of the 'System.out.print()' method in Java?

What is the purpose of the 'println()' method in Java?

What is the role of the 'String args[]' in the main method of a Java program?

Why does the main method in a Java program have to be declared static?

What is the purpose of the 'public' keyword in Java?

Which of the following is a bitwise operator in Java?

What is the result of the expression 'x += 5' in Java?

Which type of loop in Java is exit-controlled?

What is the purpose of the '==' operator in Java?

Which of the following is NOT a primitive datatype in Java?

What is the purpose of the 'else if' statement in Java?

Which keyword is used to declare the main method in a Java program?

What is the purpose of the 'public' keyword in Java?

What is the purpose of the 'continue' statement in a loop?

Which type of loop in Java is exit-controlled?

What is the purpose of the logical operator && in Java?

What are comments used for in Java?

Which keyword is used to declare a method in Java?

What is the return type of a method that does not return any value?

What is the purpose of arguments/parameters in a method?

What is the purpose of the 'println()' method in Java?

What is method overloading in Java?

What is the purpose of the 'continue' statement in a loop?

Which type of loop in Java is exit-controlled?

What is the purpose of the 'continue' statement in Java?

What is the purpose of the 'break' statement in Java?

What is the purpose of methods in Java?

What is the syntax for a method in Java?

Which type of loop in Java is entry-controlled?

Which one of these is a correct statement about classes and objects in Java?

What is the purpose of comments in Java?

Which of the following is a rule for writing a Java program?

What is the role of the 'String args[]' in the main method of a Java program?

What is the purpose of the 'public' keyword in Java?

What is an alternative to the if...else statement in Java?

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What does the following code snippet do?

int x = 5; x += 3;