An IllegalFormatException of this type is thrown by a Formatter when a format string contains an illegal combination of flags.

Figure 16-31. java.util.IllegalFormatFlagsException

public class IllegalFormatFlagsException extends IllegalFormatException {
// Public Constructors
     public IllegalFormatFlagsException(String f);  
// Public Instance Methods
     public String getFlags( );  
// Public Methods Overriding Throwable
     public String getMessage( );  
}