June 2018 Update

Task/Random-number-generator--device-/D/random-number-generator--device-.d

@@ -0,0 +1,10 @@
+import std.stdio;
+import std.random;
+
+void main()
+{
+  Mt19937 gen;
+  gen.seed(unpredictableSeed);
+  auto n = gen.front;
+  writeln(n);
+}

Task/Random-number-generator--device-/Rust/random-number-generator--device-.rust

@@ -1,13 +1,14 @@
 extern crate rand;
 
-use rand::{Rng, OsRng};
+use rand::{OsRng, Rng};
 
 fn main() {
+    // because `OsRng` opens files, it may fail
     let mut rng = match OsRng::new() {
         Ok(v) => v,
         Err(e) => panic!("Failed to obtain OS RNG: {}", e)
     };
 
-    let rand_num:u32 = rng.next_u32();
-    println!("{}",rand_num);
+    let rand_num: u32 = rng.gen();
+    println!("{}", rand_num);
 }

Task/Random-number-generator--device-/Scala/random-number-generator--device-.scala

@@ -0,0 +1,9 @@
+import java.security.SecureRandom
+
+object RandomExample extends App {
+  new SecureRandom {
+    val newSeed: Long = this.nextInt().toLong * this.nextInt()
+    this.setSeed(newSeed) // reseed using the previous 2 random numbers
+    println(this.nextInt()) // get random 32-bit number and print it
+  }
+}