Why does java not support multiple inheritances? tccicomputercoaching.com

Why does java not support multiple inheritances? tccicomputercoaching.com

Java doesn't support multiple inheritances for classes but it supports multi-level inheritance for classes and multiple inheritances in interfaces.

Let us we understand in detail why does java not support multiple inheritance?

class A
{
void show()
{
}

}
class B
{
void show()
{
}

}
class C extends A,B
{
public static void main(String args[])
{
C obj=new C();
obj.show()
}

}

In the above example compiler will never know which method to invoke. Because show() method is there in both classes and both classes have different implementation for show() method.

But in interface implementation is unique if interfaces have the same method…

i.e. interface I1
{
show();
}
interface I2
{
show();
}
class A implements I1,I2
{
void show()
{
.................
..................

}
public static void main(String args[])
{
A obj=new A();
obj.show()
}


}
Here, only declaration of method given in interface but implementation given only in class. So, only method from implementing class is going to be executed.

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What can SQL do? tccicomputercoaching.com

What can SQL do? tccicomputercoaching.com

SQL is a standard language for accessing and manipulating databases. SQL became a standard of the American National Standards Institute (ANSI) in 1986, and of the International Organization for Standardization (ISO) in 1987.

SQL is most important part of Database Management System.

Use of SQL:

• SQL is responsible for querying and editing information stored in a certain database management system.
• SQL offers great flexibility to users by supporting distributed databases, i.e. databases that can be run on several computer networks at a time.
• SQL helps you to find the needed information or data easily.
• SQL is a query language, not a programming language. You can easily write commands almost same as you write English.
• It quickly stores and gets data from the database quickly. SQL is used for the query, insert, collect and manages data from the database.
• Almost every database system will need SQL for further processing.

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What is Python primarily used for?tccicomputercoaching.com

What is Python primarily used for?tccicomputercoaching.com

Python actually have a lot of practical uses and what's most important is its ease to do things.

Python is perfect for machine learning, complex data analysis and visualization. Thanks to various libraries it is great language for scientific computing.

application is Instagram which is made up of Django Framework.

the computer program written in Python created to beat cancer. It’s an algorithm which helps in providing a more personalized treatment to cancer patients by pinpointing important variations in a single cancer cell. So, we can use it even to save life!

Python is an ideal programming language for the financial industry. Python is root language for Data Analysis and mining.

For Security Penetration and Hacking most of the tools used are written in python.

So, we can conclude that Python is very useful Programming Language current time.

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What is interpreter? - tccicomputercoaching.com