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I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.
Inner join is used to combine rows from two or more tables based on a related column between them.
Use INNER JOIN keyword in SQL to perform inner join
Specify the columns to join on using ON keyword
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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I applied via Walk-in and was interviewed in Jul 2024. There was 1 interview round.
Update query to modify data in a database table
Use UPDATE statement followed by table name
Set the column(s) to be updated using SET keyword
Specify the new values for the column(s) to be updated
Add WHERE clause to specify the condition for updating specific rows
There are 12 columns in Bootstrap grid system.
Bootstrap grid system is divided into 12 columns.
Columns can be combined to create different layouts.
Example:
Java is a compiled language that is first compiled into bytecode and then interpreted by the Java Virtual Machine (JVM).
Java is first compiled into bytecode by the Java compiler.
The bytecode is then interpreted by the Java Virtual Machine (JVM) at runtime.
This combination of compilation and interpretation makes Java a compiled language with some interpreted features.
Object-oriented programming concepts in Java
OOPs stands for Object-Oriented Programming
Key concepts include classes, objects, inheritance, polymorphism, encapsulation
Java supports OOPs principles like abstraction, encapsulation, inheritance, and polymorphism
Object-oriented programming concepts in Java
Encapsulation: bundling data and methods that operate on the data into a single unit
Inheritance: allows a class to inherit properties and behavior from another class
Polymorphism: ability of an object to take on many forms
Abstraction: hiding the implementation details and showing only the necessary features of an object
HEPL - A Cavinkare Group Company interview questions for popular designations
I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.
I applied via Walk-in and was interviewed in May 2024. There was 1 interview round.
A for loop is a control flow statement for iterating a specific number of times.
Used to iterate over a range of values or elements in an array
Consists of initialization, condition, and increment/decrement expressions
Example: for(int i=0; i<5; i++) { System.out.println(i); }
Collections in Java are frameworks that provide an architecture to store and manipulate a group of objects.
Collections provide interfaces (List, Set, Map) and classes (ArrayList, LinkedList, HashSet, HashMap) to store and manipulate groups of objects.
Collections framework includes algorithms to manipulate data structures like sorting, searching, etc.
Collections are more flexible and efficient than arrays in Java.
Exampl...
Exception handling in Java is a mechanism to handle runtime errors and prevent program crashes.
Use try-catch blocks to handle exceptions
Use finally block to execute code regardless of exception
Use throw keyword to manually throw exceptions
Use throws keyword in method signature to declare exceptions that can be thrown
For loop syntax is used for iterating over a collection of elements in Java.
Syntax: for(initialization; condition; iteration) { // code block }
Initialization: executed before the loop starts
Condition: evaluated before each iteration, loop continues if true
Iteration: executed after each iteration
Example: for(int i=0; i<10; i++) { System.out.println(i); }
Syntax for declaring an array in Java
Declare the array type followed by square brackets and the array name
Initialize the array using curly braces with values separated by commas
Example: String[] names = {"Alice", "Bob", "Charlie"}
I applied via Walk-in and was interviewed in May 2024. There was 1 interview round.
For loop is used to iterate over a collection of elements in Java.
Syntax: for(initialization; condition; update) { // code block }
Example: for(int i=0; i<10; i++) { System.out.println(i); }
A string in Java is a sequence of characters used to represent text.
Strings are objects in Java, created using the 'String' class.
Strings are immutable, meaning their values cannot be changed once they are created.
Strings can be concatenated using the '+' operator.
Example: String str = "Hello, World!";
I applied via Naukri.com and was interviewed in Oct 2023. There were 2 interview rounds.
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