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AI-generated Key Takeaways
DuplicateFormatFlagsException is an unchecked exception thrown when duplicate flags are used in a format specifier.
The constructor DuplicateFormatFlagsException(String f) creates an instance of this exception, using the string provided to identify the duplicate flags.
The getFlags() method returns the set of flags that contains the duplicate, allowing for inspection of what the issue is.
The getMessage() method returns a detailed message string describing the throwable, which may be null.
Passing a null argument to any method or constructor will cause a NullPointerException to be thrown.
Returns an array containing all of the exceptions that were
suppressed, typically by the try-with-resources
statement, in order to deliver this exception.
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