Kotlin Coding Editor for Technical Interviews

Running Kotlin 1.5 - Autocomplete is enabled

Our Kotlin environment is built on top of our Java environment, giving you access to any libraries we have installed there, too.

For example, to run a JUnit test in Kotlin:

import org.junit.*;
import org.junit.runner.*;

fun main(args: Array<String>) {
  JUnitCore.main("Solution");
}

 class Solution {
  @Test
  fun testNoop() {
    Assert.assertTrue(true);
  }
}
Code language: Kotlin (kotlin)

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