What does false mean in java

In Java, false indicates that the logical value is no, which is complementary to true, indicating that the logical value is yes. This Boolean value is used in conditional statements (such as if-else) and logical operators to determine code execution.

#What does false mean in Java?

In Java, false is a Boolean value, indicating that the logical value is no. It is complementary to true and represents a logical value of yes.

Boolean type

The Boolean type is a primitive type in Java, used to represent Boolean values. It has only two possible values: true or false.

Using false

The false value is often used in conditional statements, such as if-else statements or while loops, to determine whether to execute a block of code. For example:

<code class="java">if (age < 18) {
    // 未成年
} else {
    // 成年
}</code>

In the above example, if the age variable is less than 18, the first code block is executed, otherwise the second code block is executed.

Other uses

In addition to conditional statements, the false value can also be used in other situations:

• As the result of a logical operator, For example, AND, OR and NOT
• as part of a conditional expression, such as the ternary operator
• as a placeholder for an array or list to represent non-existent or invalid values ​​

Note:

• false is a keyword and cannot be used as a variable name or method name.
• In Java, false and FALSE are the same, but it is generally recommended to use all lowercase false.

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