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Sep 26, 2021
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improvement:operators.md #20

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improvement:operators lesson
roshaan005 Sep 26, 2021
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mention bitwise and logical operators
roshaan005 Sep 26, 2021
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fix grammar mistake
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indentation fixed
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5 changes: 3 additions & 2 deletions lessons/operators.md
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Expand Up @@ -70,8 +70,9 @@ Relational operators are used to compare the values of two operands. They are us

Logical operators are used to perform logical operations. They are used to perform the following operations:

- `&&`: AND used to perform logical AND operation. It gives true if both the operands have true value.
- `||`: OR used to perform logical OR operation. It gives true if either of the operands have true value.
- `&&` and `&`: Java unlike many other languages has two AND operators to perform logical AND operation. It returns true if both the operands (being compared) have a truthy value. Even though both the `&` and `&&` operators perform the same AND operation; the `&&` operator is a logical operator and it can improve the efficiency of your code since it evaluates the second expression only if the first expression is true unlike the bitwise `&` operator which evaluates the second expression nonetheless.

- `||` and `|`: OR is used to perform logical OR operation. It returns true if either of the operands have a truthy value. The difference between `|` and `||` is that the `|` operator is a bitwise operator and it compares each operand bitwise whereas the `||` operator is the logical OR operator. It operates on both the operands and returns true if either of the operands have a truthy value.
- `!`: NOT used to perform logical NOT operation. It gives true if the operand has false value.

let's see an example:
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