On November 17, 2004, the Kunlong Ruixong, North Air China, participated in the SCJP examination, submitted 20 minutes in advance, as follows: Total: 61 questions, answer: 56 questions (91%) Description and Access control: 100% process control , Assertion and exception handling: 77% useless storage unit collection (garbage recycling): 66% programming language foundation: 100% operator and assignment: 100% overload, overwritten, runtime type and object-oriented: 100% thread: 87% Basic class in the Java.lang package: 83% collection framework: 100%
