how to check if a student taking more than 1 course in java

SELECT s.sid, s.sname FROM student s INNER JOIN major m ON m.sid = s.sid GROUP BY s.sname, s.sname HAVING SUM (m.dname LIKE '%Computer Sciences%') > 0 AND SUM (m.dname LIKE '%Mathematics%') > 0; Each condition in the having clause counts the number of students taking the particular courses. The > 0 says that there is at least one.

Full Answer

How many courses are there in Java?

There are seven types of classes in Java: Static Class. Final Class. Abstract Class.

Can I learn Java in 2 days?

To learn Java, we should have command on the Oops concepts like Polymorphism, Encapsulation, Inheritance, and Abstraction because Java works on these principles. We should have to gain knowledge of the following concepts in two days. Polymorphism or Runtime Polymorphism and Compile-time Polymorphism.

How can I learn Java in one night?

1:0414:00Learn Java in 14 Minutes (seriously) - YouTubeYouTubeStart of suggested clipEnd of suggested clipEnvironment this is where you write code you can read code in notepad or on a piece of paper. ButMoreEnvironment this is where you write code you can read code in notepad or on a piece of paper. But none of those ways has a way to compile. Your code which means turn it into zeros.

Is intro to Java hard?

Java is a well-structured, object-oriented language, which can be considered easy for beginners. You can master it quite rapidly, as there are many processes that run automatically. You don't have to delve into “how the things work in there” too deep. Java is a cross-platform language.

Is Java enough to get a job?

According to the Stackoverflow 2019 survey, Java is in the top five most used languages professionally, giving way to JavaScript, HTML/CSS, SQL, and Python. That means companies are actively using it for their projects and there are enough jobs in this field.

Can I get job after learning Java?

Career Options for Java Programmers Professionals with experience and a Java certification can earn up to Rs. 12 lakh annually. The job roles after completing any java developer certification courses include Web developer, Software Developer, Application Developer, Web Programmer and EJB Programmer among others.

Can I learn Java in 3 months?

Yes, Learning java in 3 months is possible. Although, it would require a lot of time to master it but at least in three months you can get good knowledge about Java SE. I would suggest invest more than three months and try to make a small project using java, this is how you can actually learn it.

Can I learn Java in 2 months?

No, it's not possible to learn enougy Java in two months to get a job as a SDE. On the other hand, it's perfectly feasible to take a course on Java and complete it in two months.

How can I become a pro in Java?

How to Become a Good Java ProgrammerLearn about JVM (Java Virtual Machine) ... Design Patterns (GOF Patterns) ... Java API and Library. ... Learn Java ( JDK 8 to JDK 14) ... Spring Framework (Spring Boot) ... Cloud and Microservice. ... Learn the Design Pattern and Best Practice of Coding. ... Refactoring.More items...

Is Java or Python easier?

Java and Python are two of the most popular programming languages. Of the two, Java is the faster language, but Python is simpler and easier to learn. Each is well-established, platform-independent, and part of a large, supportive community.

What is the hardest programming language?

C++ C++ is considered to be one of the most powerful, fastest, and toughest programming languages.

Why is Java so tough?

Learning Java is only hard when you have no technical background or you don't take the proper steps to learn the language. Java syntax is a statically typed machine language that has broad features and frameworks and can be integrated into several platforms. This can make it difficult to grasp as a beginner.

How quickly can I learn Java?

For a person with no prior programming experience, it is expected approximately 9 months, that is 5+3+1 months to completely understand and write Java programs.

How many days can I learn Java?

On average, becoming a confident Java programmer takes about 1–2 years, considering you spend 2–3 hours per day practicing coding. Familiarising yourself with the language to the point where you can edit someone else's code or write basic apps can take as little as four months.

Can a non IT person learn Java?

Learning the basics of computer science will not be enough. If you have prior knowledge of C language and the concepts, learning Java becomes easier. Java can be downloaded easily and anyone can download the JRE and run the Java program.

Is it possible to learn Java in a week?

You can learn java in a week , considering you already know some other programming language like C , C++ or python beforehand . Learn the basic syntax , datatypes , operators ,decision making , looping, methods and exception handling. Learn about arrays and Strings in detail.

Java Program to Find Student Grade Example 1

This program helps the user to enter five different integer values for five subjects. Next, it finds the Total and Percentage of those Five Subjects.

Java Program for Student Grade Example 2

This program is the same as above. But this time, we are creating a separate Java method to display the student grades.

Program 1: Find the Total Marks and Percentage of a Student

In this approach, we will use the iterative method to calculate the total marks and percentage secured by the student.

Program 2: Find the Total Marks and Percentage of a Student

In this approach, we will use the recursive method to calculate the total marks and total percentage secured by the student.

What is the first class in Java?

First one is the ‘Student.java’ class and second one is the ‘ Main.java’ class. ‘Student.java’ will hold the informations about a student. And, ‘Main.java’ is used to do other tasks like create a student, find the top student etc.

What is a Java program?

Java program to check if a number is Pronic or Heteromecic. Java program to check if all digits of a number are in increasing order. Java program to find three numbers in an array with total sum zero.

Is a student a person?

Student is a Person - ok. Course have few Students - it is a composition (Student should be a field in class Course, and will be collection of students - List), not a inheritance.

Can you add a list of courses to a student?

You could add a List<Course> courses attribute to Student and a List<Student> students attribute to Course (Both if n:m, only one if 1:n).

Is a course a student?

Students take courses. I need a course class. Is a course a student? no. vice versa? no. Oh - a student takes a course. Or a student has courses - has means composition not inheritance