IOS Programmer Level 6 Exam (answer and explanation) I'm the preface.1. What does the following code output?
@implementationson: father -(id) init { Span class= "line" > self = [super init]; if (self) {
Answer: All output "Son"Explanation: OBJC super is a compiler identifier, not the same as self an object, encountered in the super method of the postback will be translated into objc_msgSendSuper(...) , and the parameters of t
The fall semester Java has already closed the lesson, when sees the academic affairs platform posted the notice to say that the examination form is the single topic, the heart is happy mixed.It is gratifying that this form of examination is still relatively popular, after all, in addition to judgment, the best thing to do is a single-choice question.However, the mid-term selection of 50% of the hit rate is still vivid, the heart worries. Then it turned out that my worries were not unreasonable,
College more wonderful, a big time to learn VB, this semester to learn C + +, and then in the first three weeks of school without classes, the teacher said three weeks of C language, every day 9:30~11:30 lectures, except holidays and weekends, the actual lecture time is 12 days * 2 hours, the afternoon is 14:10~5:00, On the computer, but there are nearly three hours of machine time every afternoon. Time so urgent also to test, this morning learned that the e
20165237 2017-2018-2 "Java Program Design" Tenth week exam complement and programming problem knowledge points1. A linked list is a data structure consisting of several objects called nodes, each of which contains a reference to the next node.2. The class method provided by the collections class for sorting and finding is as follows: public static sort (ListData Structure-Sort:Topic:In data structures and algorithms, sorting is an important operation,
hard teachers also ushered in the final exam each semester: Examinee's platoon, examination room table signing production, student achievement statistical analysis, student transcript production ... How can we improve the efficiency of these jobs? The following is a tutorial area for the efficiency of prawns prepared by the tutorial, hoping to help teachers.
pre-Test preparation: This is not only applicable to the register, but also s
RHCE Simulation Exam configuration Samba service, share out/groupdir directory, requires only 192.168.0.0/24 and 192.168.1.0/24 and 127.0.0.1 can access, share out the name is [common], users can not see, Only the student group has the Write permission, at the same time, to the student group of each user's home directory is also shared, and requires selinux must be enforcing. This will prevent Samba from logging on.The solution is to change the SELinu
Tags: show situation blog Department build _id char user exam 1) Displays the name of the employee who is exactly 5 characters HR@ORA11GR2>SelectLast_name,first_name fromEmployees2 whereLength (first_name)= 5;
2displays the names of employees without "R". HR@ORA11GR2>SelectLast_name,first_name fromEmployees2 whereFirst_Name not like '%r%';
3) Displays the names of all employees and replaces all "a" HR with a@ORA11GR2>Select Replace(First_Name,'A','
Tags: oracle 11g OCP test Bank Analysis certification Exam TU Institute Oracle Oracle OCP Certification ExamQUESTION 5You want to enable archiving on your database. Presently, the database is running in Noarchivelog mode.Given below is the steps to accomplish the task in random order:1. Shut down the instance.2. Execute the ALTER DATABASE ARCHIVELOG command.3. Start up the instance and mount the database.4. Set The Db_recovery_file_dest initiali
2. Exam Information Management(1) Using the console program to do the interface(2) Create at least 5 exam-related classes(3) Completion of the test results of input, statistics and other functions(4) test requirements: The object-oriented features used in the test program.Write 5 5 classes on exams in C #, exam information management
Qaq-too touching, once again proved how slag. Materialized number is simply touching, whether should put the terrible test paper hanging on the wall every day remind of their touching history.All kinds of wrong, bad state is on the one hand, but every exam is not as good as it seems to be ...Incredibly can also put the political answer to the wrong, although only painted the wrong one, but. Historical results into the division into not in, that is wha
;>= 1) {if (K 1) ret = ret * t;t = t * t;}return ret;}};void Kmp () {fail[0] = fail[1] = 0;for (int i = 1; i int p = fail[i];while (P s[i] = s[p]) p = fail[p];fail[i + 1] = s[i] = = s[p]? p + 1:0;}}int main () {scanf ("%d%d%d", n, m, mod);for (int i = 0; i char C = getchar ();For (;!isdigit (c); c = GetChar ());S[i] = C-' 0 ';}KMP ();Matrix Q (M, m);for (int i = 0; i For (int j = 0; J int p = i;while (P s[p]! = j) p = fail[p];if (s[p] = = j) p++;q.a[p][i]++;}matrix ans (M, 1);ans.a[0][0] = 1;
An exam for n students would take place in a long and narrow, so the students would sit in a line in some Order. The teacher suspects that students with adjacent numbers (i and i + 1) always studied side by Si De and became friends and if they take a exam sitting next to all other, they would help each other for sure.Your task is to choose the maximum number of students and make such a arrangement of stu
Ten years participated in two times soft test, by the complexity of the topic of the scare, from now on, feel soft test in my case, too difficult, no solid foundation, no rich work experience, the most critical is, no interest. In this way, deaf and dumb, laissez-faire, but all because the baby's birth became different. I always think that after the face of the baby, said your father did not qualify because the exam is too difficult, too embarrassed!
The exam strategy is important.1) Carefully read each question, the test instructions to understand, the sample calculation, the details of the subject requirements.2) The introduction of the model of each problem, determine the strategy of each problem, is part of or to all points. determine the order of the problems, plan the time allocation, and implement them in strict accordance with the time allocation . Pre-preparatory work is necessary, the fi
Http://edu.sina.com.cn/cet/2008-11-17/1416174914.shtml
Exam process: December 20 (Saturday) Schedule:
--- Test time
--- Play test room instructions, issueCompositionExam
Remove the headset at and start the essay test.
Issue a quick-reading exam book at (but do not start)
--- For quick reading
--- Answer question and answer card 1 (that is, composition and quick reading)
--- Put on your earphones a
Exam RankingsTime limit:1000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total Submission (s): 9760 Accepted Submission (s): 3401Problem DescriptionThe C + + programming exam uses a real-time submission system that features instant performance rankings. How is its function implemented?We have done the answer to the question, after the submission, either "AC", or wrong, regardless of the wr
Export exam to word
# Region create a word exam (export to word directly) ///
Complete source code download: http://www.51aspx.com/Code/StarkSoftExam
Starksoft Question Bank Management System (2) -- generate a word exam
UML diagram, document, and code, you must make full use of the auxiliary software and functions, such as prototype tools, entitycodegenerte, forward engineering, and reverse engineering.
During the development process, we often encounter a problem called "degree", that is, to which extent the page is beautified? To which extent is this function easy to use? Which degree is the database design standard? If you are perfect, a project in a month may be delayed for one year. If you are satisfied, a
When I was just engaged in it R D in the early years, everyone took the computer qualification/Level Test and thought that I had a certificate to find a job, how many times have you taken advanced exams?ProgramClerk, but a score is higher than a score. Remember to take the last exam (the last exam of the old teaching material). Haha, if the record is 42/58, the difference is 3 points, and the certificate i
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