java assert
时间: 2023-10-27 20:43:51 浏览: 33
The Java assert statement is a debugging aid that can be used to test assumptions that programmers make in their code. It is used to check whether a particular condition is true or false, and if the condition is false, an AssertionError is thrown. The syntax of the assert statement is:
assert condition;
Here, the "condition" is a boolean expression that needs to be evaluated. If the condition is true, execution continues normally. If the condition is false, an AssertionError is thrown with an optional message. The message can be provided as follows:
assert condition : message;
The "message" is a string that provides additional information about the failure. It is displayed along with the AssertionError when the condition fails.
The assert statement is typically used during development and testing to catch programming errors early. However, it is disabled by default in Java, and must be enabled using the "-ea" or "-enableassertions" command-line option.
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