InterviewExpert.org The import keyword in Python is used to access features from modules and packages. In Python, a package is a collection of modules, and a module is a single file containing Python code. When you use the import statement, you can bring in functions, classes, and variables defined in other modules or packages into your … Read more
In Java, to check whether a string is palindrome or not we can create a custom method to do string reversal (As custom method is more efficient and reusable) along with that we can also use two-pointer approach or String reversal approach. A String is known as palindrome String, If the reversed string is equal … Read more
In Java, to check whether a year is a leap year or not we can use conditional statements such as if else or switch statements. For a given input year, we have to print whether the year is leap year or not. In this program we will be using the switch statement to solve this … Read more
In Java, to find a reverse of a string is a common task. We can reverse a string with various methods available, such as using loops like while and for, or using StringBuilder for efficiency. For instance, reversing the String “hi” results in “ih”. In this article we will learn how to find reverse of … Read more
In mathematics, a matrix is a rectangular array of numbers arranged in rows and columns. Matrix multiplication is a vital operation in various applications like graphics transformations, solving systems of linear equations, and in algorithms across scientific computing, engineering, and deep learning. However, multiplying matrices isn’t as straightforward as multiplying individual elements. It involves a … Read more
Matrix addition is a basic arithmetic operation where two matrices of the same dimensions are added together to produce a new matrix. Each element of the resulting matrix is obtained by adding corresponding elements from the two matrices. This operation is vital in data science, physics, engineering, and more, where matrices are used to represent … Read more
In the world of Java programming, making decisions is a fundamental part of creating dynamic and responsive applications. Conditional statements, also known as control flow statements, are the backbone of decision-making, allowing programs to react differently based on varying inputs or conditions. Whether you’re developing a simple application or complex software systems, understanding how to … Read more
In Java, to find percentage and grade of the students based on marks we can use if-else conditional statements or Ternary Operator. For example, if a student’s marks in each subject are 30, 45, 60, 90, and 67, the calculated percentage would be 58.40%, resulting in a grade of E. In this article, we are … Read more
The ternary operator, also known as the conditional operator, is a compact way to express conditional statements in Java. Syntax: Features: Example: Nested Ternary Operators: The ternary operator can also be nested within another ternary operator to express more complex conditional logic. However, nesting ternary operators excessively can reduce code readability and should be used … Read more
There are eight types of operators in Java. Let’s see about each and every operator with example, 1. Arithmetic Operators Arithmetic operators perform mathematical operations on operands. Example: 2. Assignment Operators Assignment operators are used to assign values to variables. Example: 3. Unary Operators Unary operators operate on a single operand. Example: 4. Relational Operators … Read more