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logical operators in java  

Logical Operators are essential when it comes to coding in any programming language. These logical operators help programmers build conditions and construct logical expressions.

It helps them create more sophisticated programs by enabling the code to make decisions based on specific conditions. These logical operators are commonly used in programming to check the truth value of a given statement or condition; that is, to check if it is true or false.

logical operators in java

A logical operator works by applying its operator function to operands that have logical values. Let’s take a look at some of the most common logical operators you will use when writing code, especially if you’re working with conditional statements, loops, and other complex logic structures.

AND Operator – logical operators in java 

The AND operator is used to check for both conditions being true in one statement; it returns true if both conditions are true, and false if either or both of the conditions return false. Essentially, the AND operator checks if both operands are true.

Let’s take a look at an example where we’ll use the AND operator to check for two specific conditions. This example code checks to see if a person is over the age of 18 and if they have a valid drivers licence. The AND operator is used to check if both of the conditions are true.

If we were to break down the AND operator in code, it would look like this: And Operator= operand1 AND operand2; In this example, both operands are evaluated to determine if the condition is true or false.

An operand is simply a value used in a programming operation, such as an age or a licence number. If both operands are true (that is, they have a logical value of true or false), then the AND operator returns a value of true.

OR Operator – logical operators in java

The OR operator is used to check for one of two conditions being true; it returns true if either or both of the conditions are true. In other words, it checks if either operand is true.

Let’s take a look at an example where we’ll use the OR operator to check for two specific conditions. This example code checks to see if a person is under the age of 18 or if they have a valid drivers’ licence.

The OR operator is used to check if one of the conditions is true. If we were to break down the OR operator in code, it would look like this: Or Operator= operand1 OR operand2; In this example, both operands are evaluated to determine if the condition is true or false.

An operand is simply a value used in a programming operation, such as an age or a licence number. If either operand is true (that is, they have a logical value of true or false), then the OR operator returns a value of true.

NOT Operator – logical operators in java

The NOT operator is used to reverse the condition of a true/false statement. Using it, you can check for two conditions — one where the statement is false and another where it’s true.

Let’s take a look at an example where we’ll use the NOT operator to check for two specific conditions. This example code checks to see if a person is under the age of 18 and if they don’t have a valid drivers’ licence.

The NOT operator is used to check if one of the conditions is false. If we were to break down the NOT operator in code, it would look like this: Not Operator= ! operand; In this example, the operand is evaluated to determine if the condition is true or false.

An operand is simply a value used in a programming operation, such as an age or a licence number. If the condition is true, the NOT operator returns a value of false. If the condition is false, the NOT operator returns a value of true.

NAND Operator – logical operators in java

The NAND operator is used to check for two conditions where both are false. What this means is that the statement will be false no matter what the conditions are.

Let’s take a look at an example where we’ll use the NAND operator to check for two specific conditions. This example code checks to see if a person is under the age of 18 and if they don’t have a valid drivers’ licence.

The NAND operator is used to check if both conditions are false. If we were to break down the NAND operator in code, it would look like this: Nand Operator= operand1 NAND operand2; In this example, both operands are evaluated to determine if the condition is false.

An operand is simply a value used in a programming operation, such as an age or a licence number. If both operands are false, the NAND operator returns a value of true.

XOR Operator – logical operators in java

The XOR operator is used to check for two conditions where one is true and the other is false. It returns true if one condition is true and returns false if both conditions are false. Let’s take a look at an example where we’ll use the XOR operator to check for two specific conditions.

This example code checks to see if a person is under the age of 18 and if they don’t have a valid drivers’ licence. The XOR operator is used to check if one condition is true and the other is false.

If we were to break down the XOR operator in code, it would look like this: Xor Operator= operand1 XOR operand2; In this example, both operands are evaluated to determine if the condition is true or false.

An operand is simply a value used in a programming operation, such as an age or a licence number. If one of the operands is true and the other is false, the XOR operator returns a value of true.

Co-incidence Operators – logical operators in java

The co-incidence operators (&&) and (||) are used to check for two conditions where both are true or both are false. The difference between these two operators is that the && operator returns false if the two conditions are both true or both false, whereas the || operator returns true in those cases.

Let’s take a look at an example where we’ll use the co-incidence operators to check for two specific conditions. This example code checks to see if a person is under the age of 18 and if they don’t have a valid drivers’ licence.

The co-incidence operators are used to check if both conditions are true. If we were to break down the co-incidence operators in code, it would look like this: Co-incidence Operator= operand1 && operand2; In this example, both operands are evaluated to determine if the condition is true or false.

An operand is simply a value used in a programming operation, such as an age or a licence number. If both conditions are true, the co-incidence operators return a value of true.

Conditional Operator – logical operators in java

The conditional operator (?!) is used to check for two conditions where one is true and one is false. If the first condition is true, it will return the first operand. If the first condition is false and the second is true, it will return the second operand.

If both conditions are false, it will return a value of false. Let’s take a look at an example where we’ll use the conditional operator to check for two specific conditions.

This example code checks to see if a person is under the age of 18 and if they don’t have a valid drivers’ licence. The conditional operator is used to check if both conditions are true or false.

If we were to break down the conditional operator in code, it would look like this: Conditional Operator= operand1 ? operand2 : operand3;

In this example, both operands are evaluated to determine if the condition is true or false. An operand is simply a value used in a programming operation, such as an age or a licence number. If the first condition is true, the conditional operator will return the first operand. If the first

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