error when running readInt

Question

error when running readInt

Closed this issue 5 years ago · 2 comments

when running the following simple code, an error occurs. My system is win10.

import io.StdIn
val r = StdIn.readInt

error (from the log)
Problem
java.io.EOFException: Console has reached end of input
at scala.io.StdIn.readInt(StdIn.scala:120)
at scala.io.StdIn.readInt$(StdIn.scala:117)
at scala.io.StdIn$.readInt(StdIn.scala:241)
at Wrapper3$.(scripteditor:13)
at Wrapper3$.(scripteditor)
at Wrapper3.entry(scripteditor)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Answer 1 · 2019-07-27T03:43:29.000Z

Kojo does not have an attached Console, so the StdIn stuff will not work. Instead, use Kojo's built-in readXX methods. For example:

val r = readInt("Enter a number")

Kojo supports readInt(prompt), readDouble(prompt), and a generic readln(prompt).

Answer 2 · 2019-07-27T05:58:22.000Z

ths, it works.

when running the following simple code, an error occurs. My system is win10.

import io.StdIn val r = StdIn.readInt

import io.StdIn
val r = StdIn.readInt