Operators

Operators are symbols that perform operations on variables and values.

1. Arithmetic Operators

Used to perform common mathematical operations.

Operator	Name	Description	Example
`+`	Addition	Adds together two values	`x + y`
`-`	Subtraction	Subtracts one value from another	`x - y`
`*`	Multiplication	Multiplies two values	`x * y`
`/`	Division	Divides one value by another	`x / y`
`%`	Modulus	Returns the division remainder	`x % y`
`++`	Increment	Increases the value by 1	`++x`
`--`	Decrement	Decreases the value by 1	`--x`

Used to compare two values. Returns a boolean.

Used to combine conditional statements.

Operator	Name	Description	Example
`&&`	Logical and	Returns true if both statements are true	`x < 5 && x < 10`
`\|\|`	Logical or	Returns true if one of the statements is true	`x < 5 \|\| x < 4`
`!`	Logical not	Reverse the result, returns false if the result is true	`!(x < 5 && x < 10)`

Used to assign values to variables. =, +=, -=, *=, /=, %=.

Example: x += 3 is same as x = x + 3.

Used to perform manipulation of individual bits of a number. & (AND), | (OR), ^ (XOR), ~ (Complement), << (Left Shift), >> (Right Shift).

instanceof compares an object to a specified type.

String str = "Hello";
boolean result = str instanceof String; // true

Ideally a shorthand for if-else. variable = (condition) ? expressionTrue : expressionFalse;

int time = 20;
String result = (time < 18) ? "Good day" : "Good evening";

Test your math skills!

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[!TIP] Notice that 10 / 3 prints 3, not 3.33. This is because both are integers. To get a decimal, cast one to double: (double) a / b.

Confused about "Java arithmetic, logical and comparison operators details"? Ask our AI mentor for a simplified explanation.

Question 1 of 4

What is the result of 10 % 3?

3.33

Now that we can manipulate data, let's learn how to control the flow of our program with Control Flow Statements (if-else, loops).