java interview exercises

String exercises and interview questions (Part 2) and exercises (Part 2) Link 1:Explanation of string exercises and interview questions (Article 1) 6 questions: reply string (basic questions of the Competition) Enter a string to obtain its longest echo substring. The mean

String exercises, Interview Questions (article 1), and exercises Question 1: WERTYU (Competition basics) When you place your hand on the keyboard, you will be right and wrong when you do not pay attention to it. In this case, Q will change to W, J will change to K, and so on. Enter a wrong string and output the sentence that the typist intended to print. Sample i

"Interesting integer" exercises, Interview Questions (Article 2), and exercises (Article 2) Link 1: "interesting integer" exercises and interview questions (Article 1) 6 questions: number of replies When a multi-digit reads by bit, the result is the same whether it is read

"Interesting integer" exercises, Interview Questions (article 1), and exercises Question 1: Quantity If a number is equal to the sum of its factors, this number is called the complete number. For example, 6 = 1 + 2 + 3. Write a program and obtain the number of all completions in less than 10000. #include Resolution: although the result shows that MAXN only need

String exercises, Interview Questions (article 1), and exercises Question 1: WERTYU (Competition basics) When you place your hand on the keyboard, you will be right and wrong when you do not pay attention to it. In this case, Q will change to W, J will change to K, and so on. Enter a wrong string and output the sentence that the typist intended to print. Sample i

Linux Operations Common basic interview exercises (4)-Promotion1 ( ZZ ) command is executed in the VI Editor to exit the disk A:q B ZZ c:q! D:wq2 with a virtual machine installed a Linux system, suddenly want to clone a server, after cloning found unable to surf the internet, how to solve? 1 Remove the UUID MAC address of the Linux NIC Eth02 emptying the/etc/udev/rules.d/70-persistent-net.rules3 reboo

Java-based I/O Stream Integrated exercises and java-based I/O exercises 1 * byte streams include: FileInputStream and FileOutputStream ). 2 * character streams include: Character Input streams (FileReader), and FileWriter ); Byte stream> byte input stream is nothing more than reading files. Beginners can think so and p

Tags: Linux learning Linux Essentials Linux Linux BasicsLinux Operations Common basic interview exercises (4)-Promotion1 ( ZZ ) command is executed in the VI Editor to exit the disk A:q B ZZ c:q! D:wq2 with a virtual machine installed a Linux system, suddenly want to clone a server, after cloning found unable to surf the internet, how to solve? 1 Remove the UUID MAC address of the Linux NIC Eth02 empt

Tags: Linux operations Linux learning Linux Basics Linux EssentialsLinux Operations Common basic interview exercises (4)-Promotion1 ( ZZ ) command is executed in the VI Editor to exit the disk A:q B ZZ c:q! D:wq2 with a virtual machine installed a Linux system, suddenly want to clone a server, after cloning found unable to surf the internet, how to solve? 1 Remove the UUID MAC address of the Linux NIC

Examples of common exercises for logical operations:Print (1 or 2 and 3 or 4) print (2 > 1 or 1 and 3 Answer:1 12 TrueView CodeCoding Knowledge:The role of ASCII:1 ASCII is binary with English uppercase and lowercase letters, punctuation, special symbols of the corresponding table, a total of 8 bits, the leftmost one for 0 is reserved bit.View CodeTo print all the elements in the Dequeue table:L1 = [A-z , ' name ', [2,3, ' age '],7] for in L1: if

String exercises and interview questions (Article 2)Question: enter a string for the essay string (basic question of the Competition) to obtain its longest essay string. The meaning of a substring is a string segment that appears continuously in the original string. The meaning of the reply is: Reading and viewing are the same, such as abba and yyxyy. When judging, all punctuation marks and spaces should be

This article provides five simple integer questions. I have a poor foundation, so I can sort it out for future reference. It is not recommended that you read this article because it is really simple and will waste time. Article 2... Fight ~ Link 1: "interesting integer" exercises and interview questions (Article 1) 6 questions: number of replies When a multi-digit reads by bit, the result is the same wheth

development documentation I have saved it, I can send to your mailbox. Is that you can develop the time in the interface to increase the strength, so that the interface to look more comfortable, and to pay attention to the development of business, with the business will have users.Q: What are the experiences and lessons learned during project development?A: We are in the development of this project is a lot of lessons, mainly in the project development when the team should pay attention to comm

' Ecs_mian2 ' ('user_name', ' subject ', ' score ')Values('Zhao Liu','Chemical',' -');Insert into' Ecs_mian2 ' ('user_name', ' subject ', ' score ')Values('Zhao Liu','language',' $');Insert into' Ecs_mian2 ' ('user_name', ' subject ', ' score ')Values('Zhao Liu','Mathematics',' -');Idea One:Calculate the number of subjects for score #这种方法: Using where to filter the score60 of the subjects, even if not to score>=The average score for 60 of the subjectsSELECT user_name,AVG(score) asAvg_score,COU

* FROM score where c_name= ' computer ' ORDER BY grade DESC17. Query the student's number from the student table and the score table, then merge the query resultsSELECT ID from StudentUNIONSELECT stu_id from score; 18. Check the name of the student surnamed Zhang or Wang surname, department and examination subjects and resultsSelect T1.name,t1.sex,t1.birth,t1.department,t1.address,t2.grade,t2.c_name from student T1, score T2 where (T1.name like ' Zhang% ' or t1.name like ' King% ')and t1.id

JAVA exercises 9 and java exercises public class Circle { private double radius; public Circle(){ this.radius=1; } public Circle(double radius){ this.radius=radius; } public double getArea(){ return radius*radius*Math.PI; } public double getPerimeter(){

Java programming Chapter 1 programming exercises and java programming exercises 2.1 public class test { public static void main(String[] args) { Scanner input = new Scanner(System.in); double f, c; c = input.nextDouble(); f = (9.0/5)*c+32; System.out.println(f); }} 2.2 public cl

users, for security reasons, require these users to log on the first time must change the password, how to implement?Modify the/etc/shadow third column to change the value of the new user to 0.7, how to change all the files in a directory (without directory) permissions to 644?Find./-type F | Xargs chmod 6448, please realize the following requirements: Only allow the use of ordinary account login, and ordinary account login, you can not enter the password to sudo switch to the root account, roo

(select Sal from EMP where deptno=10); MYSQL does not supportMysql specification, modify or delete records in a table, do not allow querying of the same table in subqueriesERROR 1093 (HY000): You can ' t specify target table ' EMP ' for update in FROM clauseSolution: Temp TableDelete from emp where deptno=10 and Sal >= all (select T.sal from (select Sal from emp where deptno=10) t);35. Lower the salary of the highest-paid employee by 30%.Analysis: Update emp Set sal = sal*0.7 where Sal = (selec

Source code of Java-based typing exercises and java-based typing exercises The Code is as follows: Import java. applet. applet; import java. applet. audioClip; import java. awt. dimensi