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Operators in Kotlin

Math Operators​

Kotlin provides a set of math operators that you can use to perform basic arithmetic operations. Here are some of the commonly used math operators in Kotlin:

  • Addition: The + operator is used to add two numbers together. For example, val sum = 5 + 3 will assign the value 8 to the variable sum.

  • Subtraction: The - operator is used to subtract one number from another. For example, val difference = 10 - 5 will assign the value 5 to the variable difference.

  • Multiplication: The * operator is used to multiply two numbers. For example, val product = 2 * 4 will assign the value 8 to the variable product.

  • Division: The / operator is used to divide one number by another. For example, val quotient = 10 / 2 will assign the value 5 to the variable quotient.

  • Modulus: The % operator is used to find the remainder of a division operation. For example, val remainder = 10 % 3 will assign the value 1 to the variable remainder.

  • Increment and Decrement: The ++ and -- operators are used to increment and decrement a number by 1 respectively. For example, var count = 0; count++ will increment the value of count by 1.

  • Compound Assignment: Kotlin also provides compound assignment operators that allow you to perform an operation and assign the result to the same variable in a single step. Here are some examples:

    • Addition Assignment: The += operator is used to add a value to a variable and assign the result back to the same variable. For example, var num = 5; num += 3 will add 3 to the value of num and assign the result 8 back to num.
    • Subtraction Assignment: The -= operator is used to subtract a value from a variable and assign the result back to the same variable. For example, var num = 10; num -= 5 will subtract 5 from the value of num and assign the result 5 back to num.
    • Multiplication Assignment: The *= operator is used to multiply a variable by a value and assign the result back to the same variable. For example, var num = 2; num *= 4 will multiply 2 by 4 and assign the result 8 back to num.
    • Division Assignment: The /= operator is used to divide a variable by a value and assign the result back to the same variable. For example, var num = 10; num /= 2 will divide 10 by 2 and assign the result 5 back to num.

These are just a few examples of the math operators available in Kotlin. You can use them to perform various calculations and manipulate numeric values in your code.

Boolean Operators​

Boolean operators in Kotlin are used to perform logical operations on boolean values. These operators allow you to combine or manipulate boolean expressions to make decisions or control the flow of your program. There are three main boolean operators in Kotlin:

  • Logical AND (&&): The logical AND operator returns true if both operands are true, and false otherwise. For example, val result = (x > 5) && (y < 10) will assign true to result if both conditions (x > 5) and (y < 10) are true.

  • Logical OR (||): The logical OR operator returns true if at least one of the operands is true, and false otherwise. For example, val result = (x > 5) || (y < 10) will assign true to result if either condition (x > 5) or (y < 10) is true.

  • Logical NOT (!): The logical NOT operator negates the boolean value of its operand. It returns true if the operand is false, and false if the operand is true. For example, val result = !(x > 5) will assign true to result if (x > 5) is false.

These boolean operators are essential for making decisions and controlling the flow of your program based on certain conditions. They allow you to create complex boolean expressions by combining multiple conditions together.