what does else mean in java

else in Java represents the execution branch when the if condition is false in an if-else structure, used to provide the opposite behavior or handle another situation. Syntax: if (condition) {...} else {...}, usage example: int age = 18; if (age >= 18) {...} else {...}. It differs from if-else if which allows multiple else if conditions, whereas else block provides only one alternative branch.

else meaning in Java

else in Java Used in the Java programming language to create conditional branches in the if-else structure. It means that if the if condition is false, execute the code in the else statement block.

Syntax:

<code class="java">if (condition) {
  // 如果 condition 为 true，则执行这些语句
} else {
  // 如果 condition 为 false，则执行这些语句
}</code>

Usage:

else Statement blocks are usually used to provide the same ##if Conditional opposite behavior or handling of another situation.

Example:

<code class="java">int age = 18;

if (age >= 18) {
  // 成年人
} else {
  // 未成年人
}</code>

if condition checks if the age is greater than or equal to 18 years old. If the condition is true, the "adult" code block is executed. Otherwise, the "minor" code block is executed. The difference between

and if-else if structures:

statement block and if-else if The structure is different. The if-else if structure allows multiple else if conditions to be specified after the if condition, while the else statement block provides only one alternative branch .

else
• statement block is optional. If the if condition is false and there is no else statement block, no code will be executed.
else
• A statement block can contain multiple statements.

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