--- a/src/java.base/share/classes/java/util/Random.java Thu Aug 02 09:59:12 2018 -0700
+++ b/src/java.base/share/classes/java/util/Random.java Tue Dec 04 11:08:07 2018 +0100
@@ -36,6 +36,9 @@
import jdk.internal.misc.Unsafe;
+import java.util.Set;
+import java.util.HashSet;
+
/**
* An instance of this class is used to generate a stream of
* pseudorandom numbers. The class uses a 48-bit seed, which is
@@ -142,6 +145,17 @@
}
}
+ /**
+ * test maintest.
+ */
+ private void maintest() {
+ Set<Short> s = new HashSet<>();
+ for (short i = 0; i < 100; i++) {
+ s.add(i);
+ s.remove(i - 1);
+ }
+ System.out.println(s.size());
+ }
private static long initialScramble(long seed) {
return (seed ^ multiplier) & mask;
}