Scala Console.readInt deprecated

Question

The command line interpreter of scala shows:

scala> Console.readInt
warning: there was one deprecation warning; re-run with -deprecation for details
res0: Int = 65

Is Console.readInt really deprecated? If yes, what is the correct way of taking input?

I am using Scala version 2.11.7 on OS X 10.10.5.

Answer 1

In Scala 2.11 you can use

scala.io.StdIn.readInt()

or

scala.io.StdIn.readLine().toInt

Answer 2

As suggested by the REPL, run scala -deprecation to get more info:

scala -deprecation
Welcome to Scala version 2.11.2 (OpenJDK 64-Bit Server VM, Java 1.7.0_79).
Type in expressions to have them evaluated.
Type :help for more information.

scala>  Console.readInt
<console>:8: warning: method readInt in class DeprecatedConsole is deprecated: Use the method in scala.io.StdIn
               Console.readInt
                       ^

Answer 3

Or, you can use import to depress the warning:

import scala.io.StdIn._
val name = readLine("Your name:")
val age = readInt()
printf("Your name: %s, your age: %d\n", name, age)

Answer 4

Check the Scala Api

(Since version 2.11.0) Use the method in scala.io.StdIn

It also has readInt method