Which language do you use. Comment your answer.
Java is a high-level programming language developed by Sun Microsystems. ... Instead, Java programs are interpreted by the Java Virtual Machine, or JVM, which runs on multiple platforms. This means all Java programs are multiplatform and can run on different platforms, including Macintosh, Windows, and Unix computers.
More than 64,000 companies are using Java in the US. Coming specifically to the big companies, Airbnb is using Java, Uber is based on Java, LinkedIn is a Microsoft product now yet it is sporting Java. eBay is based on Java, Pinterest, Groupon, Spotify, Pandora, Square are based on Java mostly.
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Java program to demonstrate the integer data type and Java program to demonstrate the floating point data types.
Which language you love the most?
Comment down your favourite language and the purpose of loving it.
What is the function used to print a statement in Java?
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What is switch case statement and Guess the output of the given program.
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The above programs are related to if else and nested if else conditions.
The first case is the program by using if else and second case is the program using nested if else. Guess the output of both the programs and comment down when if else is used and when nested if else is used..
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Java program to demonstrate the double data type and character data type.

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What is method overloading. ?
In other words, we can say that Method overloading is a concept of Java in which we can create multiple methods of the same name in the same class, and all methods work in different ways. When more than one method of the same name is created in a Class, this type of method is called Overloaded Methods.
Comment down the difference between method overloading and method overriding...
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Method declaration in java
Like a class, a method definition has two major parts: the method declaration and the method body. The method declaration defines all the method's attributes, such as access level, return type, name, and arguments, as shown in the following figure. The method body is where all the action takes place.
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What is single inheritance?
Single inheritance can be defined as a derived class to inherit the basic methods (data members and variables) and behavior from a superclass. ... Basically, java only uses a single inheritance as a subclass cannot extend more superclass. Inheritance is the basic properties of object-oriented programming.
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Multilevel inheritance in java?
When a class extends a class, which extends anther class then this is called multilevel inheritance. So in this case class C is implicitly inheriting the properties and methods of class A along with class B that's what is called multilevel inheritance. ...
What is single inheritance? This one I discussed in the previous post if you would have missed it learn now here.
Single inheritance can be defined as a derived class to inherit the basic methods (data members and variables) and behavior from a superclass. ... Basically, java only uses a single inheritance as a subclass cannot extend more superclass. Inheritance is the basic properties of object-oriented programming.
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What is postfix expression?
A postfix expression is a collection of operators and operands in which the operator is placed after the operands. That means, in a postfix expression the operator follows the operands.
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Steps involved in the insertion and deletion of an element in the stack.
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Applications of data structure.
A data structure is a way of organizing data in some fashion so that later on, it can be accessed, queried, or even updated easily and quickly. It is a collection of values. The values can have relationships among them and they can have functions applied to them.
The data structures store the data according to the mathematical or logical model it is based on. The type of operations on a certain data structure makes it useful for specific tasks.
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What is SQL?
Structured Query Language or SQL, is a programming nomenclature used to do set operations (like union, intersect, and minus) to organize and retrieve information in relational databases, based on “set theory and relational algebra.” In any system that uses SQL, “data elements or attributes, categorized into columns, ..
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What is primary key?
In the relational model of databases, a primary key is a specific choice of a minimal set of attributes (columns) that uniquely specify a tuple (row) in a relation (table). Informally, a primary key is "which attributes identify a record", and in simple cases are simply a single attribute: a unique id.
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What is RDBMS?
A database management system (DBMS) that incorporates the relational-data model, normally including a Structured Query Language (SQL) application programming interface. It is a DBMS in which the database is organized and accessed according to the relationships between data items. In a relational database, relationships between data items are expressed by means of tables. 
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What is a relationship and what are they?
A relationship, in the context of databases, is a situation that exists between two relational database tables when one table has a foreign key that references the primary key of the other table. Relationships allow relational databases to split and store data in different tables, while linking disparate data items.
There are three types of relationships between the data you are likely to encounter at this stage in the design: one-to-one, one-to-many, and many-to-many.
Stored Procedure

A stored procedure in SQL is a type of pre-written code that can be stored for later execution and then used many times hence, saving time. It is a group of SQL statements that performs the task. 
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What is normalization of databases, joins and keys?
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