Java Basics (medium)

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

string (correct)

double

boolean

int

Which of the following is a logical operator in Java?

=

&& (correct)

>

+

What is the value of 'grade' if 'marks' is 75 in the given example?

D

C

B (correct)

A

Which operator is used to assign values of an expression to a variable in Java?

= Signup and view all the answers

What is the result of the expression 'x += 5' if the initial value of 'x' is 3?

8 Signup and view all the answers

What is the purpose of conditional statements in Java?

To evaluate expressions based on a condition Signup and view all the answers

Which keyword is used to declare a method in Java?

void Signup and view all the answers

What is the purpose of the 'main' method in a Java program?

To execute the program Signup and view all the answers

What is the correct syntax for declaring an array in Java?

int[] array; Signup and view all the answers

Which loop in Java is used when the number of iterations is known?

For loop Signup and view all the answers

What is the purpose of the 'print' method in Java?

To display something on the screen Signup and view all the answers

Why does the main method in a Java program need to be declared as 'static'?

To allow the method to be called without creating an object of the class Signup and view all the answers

Which of the following is NOT a type of access specifier in Java?

package Signup and view all the answers

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

void Signup and view all the answers

Which part of a method contains the values passed to the method?

Arguments/Parameters Signup and view all the answers

What is the difference between function declaration and function definition?

Function declaration is the signature of the function, while function definition contains the body of the function. Signup and view all the answers

What is the terminating statement in a function body?

Return statement Signup and view all the answers

What is method overloading in Java?

Defining multiple methods with the same name but different arguments. Signup and view all the answers

Which type of loop in Java is exit controlled?

Do...while loop 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 Signup and view all the answers

What is the alternative for the 'else' part of the if...else if...else structure in Java?

Default case Signup and view all the answers

Which access specifier sets the accessibility of a method in Java?

Access_specifier Signup and view all the answers

Which type of loop in Java is entry controlled?

For loop Signup and view all the answers

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

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

Which of the following is true about classes in Java?

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

Which of the following is true about objects in Java?

An object is an instance of a class 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; } Signup and view all the answers

What is the purpose of comments in Java?

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

What are the rules for writing a Java program?

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

What will be covered in the next article about Java?

Object-Oriented concepts of Java Programming Signup and view all the answers

Which keyword is used to declare a method in Java?

void Signup and view all the answers

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

To terminate the execution of a loop Signup and view all the answers

What is the result of the expression 'x += 5' if the initial value of 'x' is 3?

8 Signup and view all the answers

Which of the following is true about objects in Java?

Objects are instances of classes Signup and view all the answers

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

To skip the current iteration of a loop Signup and view all the answers

What is the correct syntax for declaring an array in Java?

int[] array Signup and view all the answers

Which of the following is NOT a valid access specifier in Java?

package Signup and view all the answers

What is the purpose of the 'return_type' in a method declaration?

It is the data type of the value returned by the method Signup and view all the answers

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

Function declaration is the name of the method being defined, while function definition is the body of the method Signup and view all the answers

What is the purpose of the 'return' statement in a method body?

To return a value from the method Signup and view all the answers

What is method overloading in Java?

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

What is the purpose of comments in Java?

To improve the readability of the code Signup and view all the answers

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

string Signup and view all the answers

What is the result of the expression 'x extasciicircum y' if the values of 'x' and 'y' are 4 and 2 respectively?

8 Signup and view all the answers

Which of the following is true about the ternary operator in Java?

It is used to evaluate a condition and choose between two expressions. Signup and view all the answers

What is the value of 'grade' after executing the following code?

int marks = 75; char grade = (marks >= 80) ? 'A' : 'B';

'B' Signup and view all the answers

Which of the following is true about the logical AND operator in Java?

It returns true if both operands are true. Signup and view all the answers

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

To exit a loop or switch statement. Signup and view all the answers

Which of the following is true about objects in Java?

Objects are instances of a class Signup and view all the answers

Which of the following is true about comments in Java?

All of the above Signup and view all the answers

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

Use indentation for structuring your program Signup and view all the answers

Which of the following is true about loops in Java?

Loops are used to repeat a block of code a specific number of times Signup and view all the answers

Which of the following is true about the 'main' method in a Java program?

The 'main' method is the entry point of a Java program Signup and view all the answers

Which of the following is true about variables in Java?

Variables store data Signup and view all the answers

Which type of loop in Java is exit controlled?

Do...while loop Signup and view all the answers

Which keyword is used to terminate a particular iteration of a loop in Java?

Continue Signup and view all the answers

What is the purpose of the 'default' statement in a switch case structure?

To execute a default condition Signup and view all the answers

What is the purpose of access specifiers in Java?

To set the accessibility of a method Signup and view all the answers

What is the syntax for a for loop in Java?

for(initialization; test condition; update expression) { Body of the loop; } Signup and view all the answers

What is the purpose of methods in Java?

To make the program modular and simpler Signup and view all the answers

Java Basics (medium)

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Questions and Answers

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

Which of the following is a logical operator in Java?

What is the value of 'grade' if 'marks' is 75 in the given example?

Which operator is used to assign values of an expression to a variable in Java?

What is the result of the expression 'x += 5' if the initial value of 'x' is 3?

What is the purpose of conditional statements in Java?

Which keyword is used to declare a method in Java?

What is the purpose of the 'main' method in a Java program?

What is the correct syntax for declaring an array in Java?

Which loop in Java is used when the number of iterations is known?

What is the purpose of the 'print' method in Java?

Why does the main method in a Java program need to be declared as 'static'?

Which of the following is NOT a type of access specifier in Java?

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

Which part of a method contains the values passed to the method?

What is the difference between function declaration and function definition?

What is the terminating statement in a function body?

What is method overloading in Java?

Which type of loop in Java is exit controlled?

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

What is the alternative for the 'else' part of the if...else if...else structure in Java?

Which access specifier sets the accessibility of a method in Java?

Which type of loop in Java is entry controlled?

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

Which of the following is true about classes in Java?

Which of the following is true about objects in Java?

What is the syntax for defining a class in Java?

What is the purpose of comments in Java?

What are the rules for writing a Java program?

What will be covered in the next article about Java?

Which keyword is used to declare a method in Java?

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

What is the result of the expression 'x += 5' if the initial value of 'x' is 3?

Which of the following is true about objects in Java?

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

What is the correct syntax for declaring an array in Java?

Which of the following is NOT a valid access specifier in Java?

What is the purpose of the 'return_type' in a method declaration?

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

What is the purpose of the 'return' statement in a method body?

What is method overloading in Java?

What is the purpose of comments in Java?

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

What is the result of the expression 'x extasciicircum y' if the values of 'x' and 'y' are 4 and 2 respectively?

Which of the following is true about the ternary operator in Java?

What is the value of 'grade' after executing the following code? int marks = 75; char grade = (marks >= 80) ? 'A' : 'B';

Which of the following is true about the logical AND operator in Java?

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

Which of the following is true about objects in Java?

Which of the following is true about comments in Java?

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

Which of the following is true about loops in Java?

Which of the following is true about the 'main' method in a Java program?

Which of the following is true about variables in Java?

Which type of loop in Java is exit controlled?

Which keyword is used to terminate a particular iteration of a loop in Java?

What is the purpose of the 'default' statement in a switch case structure?

What is the purpose of access specifiers in Java?

What is the syntax for a for loop in Java?

What is the purpose of methods in Java?

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What is the value of 'grade' after executing the following code?

int marks = 75; char grade = (marks >= 80) ? 'A' : 'B';