EL Mostafa contributions

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EL Mostafa

Contribution

68Contributions

3530Contributions played

Tests

45Tests completed

3333Questions completed

Achievements

46 questions

Medium

9 votes870 runs0 comment

What is the difference between an interface and an abstract class in Java?

Full stack developer

at Feb 13, 2024

Easy

2 votes804 runs0 comment

Print the result of the division of 5 by 2 in Java

Full stack developer

at Jan 25, 2024

Easy

0 vote49 runs0 comment

What SQL operator is used to test for a range of values in a column?

Back-end developer

operators

at Nov 13, 2024

Easy

0 vote18 runs0 comment

What function returns the number of rows in an SQL table?

Back-end developer

functions

at Nov 13, 2024

Easy

0 vote18 runs0 comment

What does the LIMIT clause do in SQL?

Back-end developer

limits

at Nov 13, 2024

Easy

0 vote17 runs0 comment

What does the HAVING clause do in an SQL query?

Back-end developer

aggregation

filtering

at Nov 13, 2024

Easy

0 vote3 runs0 comment

Which Maven lifecycle phase is responsible for packaging the project code into a distributable format?

maven

packaging

at Nov 15, 2024

Easy

2 votes573 runs1 comment

Compare two strings in Java

Full stack developer

at Apr 8, 2024

Medium

2 votes115 runs1 comment

What is the output of the following Java code?

Full stack developer

at Apr 5, 2024

Medium

1 vote126 runs0 comment

What is the purpose of the "super" keyword in Java?

Full stack developer

at Mar 27, 2024

Easy

1 vote6 runs0 comment

Which annotation is used to mark a Spring Boot application class?

Back-end developer

annotations

at Sep 30, 2024

Easy

0 vote159 runs1 comment

A class can implement multiple interfaces.

Full stack developer

at Feb 13, 2024

Easy

0 vote6 runs0 comment

What is encapsulation in Object-Oriented Programming?

IT Architect

OOP

classes

objects

at Nov 8, 2024

Medium

0 vote5 runs1 comment

What is the purpose of the application.properties file in a Spring Boot project?

Back-end developer

configuration

properties

at Sep 27, 2024

Medium

0 vote4 runs0 comment

What is Hibernate?

Back-end developer

ORM

Java

at Nov 8, 2024

Easy

0 vote4 runs1 comment

What is the visibility of a protected member in OOP?

IT Architect

OOP

classes

access modifiers

at Nov 8, 2024

What is the difference between an interface and an abstract class in Java?

Print the result of the division of 5 by 2 in Java

What SQL operator is used to test for a range of values in a column?

What function returns the number of rows in an SQL table?

What does the LIMIT clause do in SQL?

What does the HAVING clause do in an SQL query?

Which Maven lifecycle phase is responsible for packaging the project code into a distributable format?

What is the difference between an interface and an abstract class in Java?

Print the result of the division of 5 by 2 in Java

What SQL operator is used to test for a range of values in a column?

What function returns the number of rows in an SQL table?

What does the LIMIT clause do in SQL?

What does the HAVING clause do in an SQL query?

Which Maven lifecycle phase is responsible for packaging the project code into a distributable format?

Compare two strings in Java

What is the output of the following Java code?

What is the purpose of the "super" keyword in Java?

Which annotation is used to mark a Spring Boot application class?

What Java keyword is used to define a constant variable?

A class can implement multiple interfaces.

Write a Java program to calculate the sum of first 5 numbers

What is encapsulation in Object-Oriented Programming?

What is the purpose of the application.properties file in a Spring Boot project?

Which dependency is needed to work with a Spring Boot web application?

What is Hibernate?

What is the visibility of a protected member in OOP?

Which annotation in Hibernate is used to specify the primary key of an entity?