// arrays/TestRand.java // (c)2016 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://OnJava8.com for more book information. // Test random generators import java.util.*; import java.util.stream.*; import onjava.*; import static onjava.ArrayShow.*; public class TestRand { static final int SZ = 5; public static void main(String[] args) { System.out.println("Boolean"); Boolean[] a1 = new Boolean[SZ]; Arrays.setAll(a1, new Rand.Boolean()::get); show(a1); a1 = Stream.generate(new Rand.Boolean()) .limit(SZ + 1).toArray(Boolean[]::new); show(a1); a1 = new Rand.Boolean().array(SZ + 2); show(a1); boolean[] a1b = new Rand.Pboolean().array(SZ + 3); show(a1b); System.out.println("Byte"); Byte[] a2 = new Byte[SZ]; Arrays.setAll(a2, new Rand.Byte()::get); show(a2); a2 = Stream.generate(new Rand.Byte()) .limit(SZ + 1).toArray(Byte[]::new); show(a2); a2 = new Rand.Byte().array(SZ + 2); show(a2); byte[] a2b = new Rand.Pbyte().array(SZ + 3); show(a2b); System.out.println("Character"); Character[] a3 = new Character[SZ]; Arrays.setAll(a3, new Rand.Character()::get); show(a3); a3 = Stream.generate(new Rand.Character()) .limit(SZ + 1).toArray(Character[]::new); show(a3); a3 = new Rand.Character().array(SZ + 2); show(a3); char[] a3b = new Rand.Pchar().array(SZ + 3); show(a3b); System.out.println("Short"); Short[] a4 = new Short[SZ]; Arrays.setAll(a4, new Rand.Short()::get); show(a4); a4 = Stream.generate(new Rand.Short()) .limit(SZ + 1).toArray(Short[]::new); show(a4); a4 = new Rand.Short().array(SZ + 2); show(a4); short[] a4b = new Rand.Pshort().array(SZ + 3); show(a4b); System.out.println("Integer"); int[] a5 = new int[SZ]; Arrays.setAll(a5, new Rand.Integer()::get); show(a5); Integer[] a5b = Stream.generate(new Rand.Integer()) .limit(SZ + 1).toArray(Integer[]::new); show(a5b); a5b = new Rand.Integer().array(SZ + 2); show(a5b); a5 = IntStream.generate(new Rand.Pint()) .limit(SZ + 1).toArray(); show(a5); a5 = new Rand.Pint().array(SZ + 3); show(a5); System.out.println("Long"); long[] a6 = new long[SZ]; Arrays.setAll(a6, new Rand.Long()::get); show(a6); Long[] a6b = Stream.generate(new Rand.Long()) .limit(SZ + 1).toArray(Long[]::new); show(a6b); a6b = new Rand.Long().array(SZ + 2); show(a6b); a6 = LongStream.generate(new Rand.Plong()) .limit(SZ + 1).toArray(); show(a6); a6 = new Rand.Plong().array(SZ + 3); show(a6); System.out.println("Float"); Float[] a7 = new Float[SZ]; Arrays.setAll(a7, new Rand.Float()::get); show(a7); a7 = Stream.generate(new Rand.Float()) .limit(SZ + 1).toArray(Float[]::new); show(a7); a7 = new Rand.Float().array(SZ + 2); show(a7); float[] a7b = new Rand.Pfloat().array(SZ + 3); show(a7b); System.out.println("Double"); double[] a8 = new double[SZ]; Arrays.setAll(a8, new Rand.Double()::get); show(a8); Double[] a8b = Stream.generate(new Rand.Double()) .limit(SZ + 1).toArray(Double[]::new); show(a8b); a8b = new Rand.Double().array(SZ + 2); show(a8b); a8 = DoubleStream.generate(new Rand.Pdouble()) .limit(SZ + 1).toArray(); show(a8); a8 = new Rand.Pdouble().array(SZ + 3); show(a8); System.out.println("String"); String[] s = new String[SZ - 1]; Arrays.setAll(s, new Rand.String()::get); show(s); s = Stream.generate(new Rand.String()) .limit(SZ).toArray(String[]::new); show(s); s = new Rand.String().array(SZ + 1); show(s); Arrays.setAll(s, new Rand.String(4)::get); show(s); s = Stream.generate(new Rand.String(4)) .limit(SZ).toArray(String[]::new); show(s); s = new Rand.String(4).array(SZ + 1); show(s); } } /* Output: Boolean [true, false, true, true, true] [true, false, true, true, true, false] [true, false, true, true, true, false, false] [true, false, true, true, true, false, false, true] Byte [123, 33, 101, 112, 33] [123, 33, 101, 112, 33, 31] [123, 33, 101, 112, 33, 31, 0] [123, 33, 101, 112, 33, 31, 0, -72] Character [b, t, p, e, n] [b, t, p, e, n, p] [b, t, p, e, n, p, c] [b, t, p, e, n, p, c, c] Short [635, 8737, 3941, 4720, 6177] [635, 8737, 3941, 4720, 6177, 8479] [635, 8737, 3941, 4720, 6177, 8479, 6656] [635, 8737, 3941, 4720, 6177, 8479, 6656, 3768] Integer [635, 8737, 3941, 4720, 6177] [635, 8737, 3941, 4720, 6177, 8479] [635, 8737, 3941, 4720, 6177, 8479, 6656] [635, 8737, 3941, 4720, 6177, 8479] [635, 8737, 3941, 4720, 6177, 8479, 6656, 3768] Long [6882, 3765, 692, 9575, 4439] [6882, 3765, 692, 9575, 4439, 2638] [6882, 3765, 692, 9575, 4439, 2638, 4011] [6882, 3765, 692, 9575, 4439, 2638] [6882, 3765, 692, 9575, 4439, 2638, 4011, 9610] Float [4.83, 2.89, 2.9, 1.97, 3.01] [4.83, 2.89, 2.9, 1.97, 3.01, 0.18] [4.83, 2.89, 2.9, 1.97, 3.01, 0.18, 0.99] [4.83, 2.89, 2.9, 1.97, 3.01, 0.18, 0.99, 8.28] Double [4.83, 2.89, 2.9, 1.97, 3.01] [4.83, 2.89, 2.9, 1.97, 3.01, 0.18] [4.83, 2.89, 2.9, 1.97, 3.01, 0.18, 0.99] [4.83, 2.89, 2.9, 1.97, 3.01, 0.18] [4.83, 2.89, 2.9, 1.97, 3.01, 0.18, 0.99, 8.28] String [btpenpc, cuxszgv, gmeinne, eloztdv] [btpenpc, cuxszgv, gmeinne, eloztdv, ewcippc] [btpenpc, cuxszgv, gmeinne, eloztdv, ewcippc, ygpoalk] [btpe, npcc, uxsz, gvgm, einn, eelo] [btpe, npcc, uxsz, gvgm, einn] [btpe, npcc, uxsz, gvgm, einn, eelo] */