41 questions
We are developing at scala.I wanted to process CRUD with code created automatically by scalikejdbc.Only update statements are not allowed. object hoge extensions SQLSyntaxSupport [hoge] { def save(ent...
package Sample01object HelloScala { defmain(args:Array [String]) = { println(Hello scala); }}It's simple like the one above, but when I try to do it, I get the following message:Error: Main class Hell...
I'd like to create a test case for the APIs that are supposed to log in, but I need to log in as a preliminary step.What should I do if I need to log in before running the test and run the test case u...
You are attempting to generate code from a database that does not have VIEW modification privileges.The document told me to override the API, but I didn't know how to do it.US>Library version usedscal...
When creating an anonymous class with a method, if the argument and the method name of the class are the sametrite User {val name:String}def newUser(name:String) = newUser{ val name = name}I'd like to...
When running in parallel, one processing becomes heavier.$scalaWelcome to Scala version 2.11.4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_25).Type in expressions to have them validated.Type—help f...
We are using Java's java.util.Date class to calculate the difference between the current time and the specific Date object in the scalar. We know that the difference can be calculated using the getTim...
Types stored in json files # test.json{key_a1:value_a1, key_a2:value_a2, key_a2:value_a3}\n{key_a1:value_b1, key_a2:value_b2, key_a2:value_b3}\n{key_a1:value_c1, key_a2:value_c2, key_a2:value_c3}\n{ke...
I just applied the for statement to the data frame as below, and the column is printed.I hope the value values come out as lists or tuples, like when you fetchall() on db instead of columnsIs there a ...
I'd like to merge the list with or condition.For example, List(List(1), List(2))List(List(1), List(2), List(3))List(List(2), List(3))List(List(4))Merge the above four lists to result values List(List(...
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