java

I have already seen a similar question and the answer to it, but I want to know what else I need to change to get rid of the ... </configuration> </plugin> </plugins> </build> </project>

If you run the query " CREATE TABLE some_name", jdbc throws an exception ORA-00955: name is already used by an existing obje ... rrorException e) { if (e.getErrorCode() != 955) { throw e; } } Is this correct? Is there a better approach?

Previously, in Java, I used scheduleAtFixedRate() to count down the time Is there anything new in Kotlin? And is there any ... solution... Update2 I think I understood, the second number is not the time when the timer ends, but the size of the tick?

When I insert ; writes an error Error:(3, 19) java: cannot find symbol symbol: class io location: package java I d ... ch = (char) System.out.read(); System.out.println("Now you press " + ch + " button"); } } }

I have the code on Kotlin (Android Studio 3.5): Class RadioPlayerActivity : AppCompatActivity() { private lateinit var pla ... iew){ playWhenReady = false; } } In the first case, the stream is played back. In the Java code-silence. What's wrong?

Let's say that in python you can do it like this: hello = "Привет" world = "мир" num = 1 print("{} {}! #{}".format(hello ... s%n", "joe"); But here it is not clear why these %s and %n, as well as how to output multiple variables in a single line...

I'm studying Java Socket and the client server part, I don't understand the moment of transferring the class object (names an ... t.flush(); } } catch(Exception er) { er.printStackTrace(); } } }

Many programming languages (C, C++, C#, Java, various Pascal dialects, PHP, Javascript) have a remainder calculation operator ... = 0 0 = 0 * 3 + 0 -1 / 3 == -1 -1 % 3 == 2 -1 = -1 * 3 + 2 -2 / 3 == -1 -2 % 3 == 1 -2 = -1 * 3 + 1 , etc.

Please tell me how to set up the same hints in intellij idea as in Eclipse?

I'm trying to split a string into an array of substrings - I found the split method. But whatever the string is initially equ ... lt = testSplit.split("."); // по идее размер массива должен быть равен трём System.out.println(result.length()); Result: 0

There is a code that unpacks ALL folders starting from the root (in the archive), and I need to do 1 directory below, if you ... ut.close(); System.out.println("запись"); exist = false; } } }

import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import ja ... t.java:2741) at org.postgresql.jdbc.PgResultSet.next(PgResultSet.java:1829) at medeelliinsan.Main.main(Main.java:28)

I have recently been studying programming and the Java programming language in particular, and here I ran into a problem. The ... System.out.print(m); } System.out.println(); System.out.println(InputString); System.out.println(CipherKey); } }

I would like to create the application itself on Android studio. Please tell me about the technologies that should be used in ... the creation (for example. Spring) and where to place the database. Well, if it is possible to advise where to learn all this

Here is a quote from the book Oracle-Certified-Professiona-Java-SE-8-Programmer-Exam-1Z0-809 In a try-with-resources stat ... urs. Or is it happening? Then how to understand the output of the exception to the console? Or did I misunderstand something?

It seems to have added @OneToMany and @ManyToOne to the link code, but for some reason it gives an error when running Spring- ... stractAutowireCapableBeanFactory.java:1792) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE] ... 16 common frames omitted

Today I was working on the problem of quotation marks in SQL queries in Java (injection) and found that in order to get \' af ... Why is this happening? I checked with System.out.println('\\');, where the console returned \, that is, the correct result.

I decided to develop an app that clears the cache of all the apps installed on the device. I figured out how to clear the cache of your own application. How can I do this for the rest of the programs?

Hello everyone I'm writing an encryption program. I read the data from the file, turn it into an array of bytes, divide it in ... ); a<<=1; if (hi_bit<0) a^=0xc3; b>>=1; } return c; }

I have the latest version of visual studio code (downloaded in 2020) I don't know how to write console programs in java using visual studio code. It's the same with Visual studio community.