[BAEL-3211] Generate Integers within a range in Java (#7668)

* [BAEL-3211] Generate Integers within a range in Java

* [BAEL-3211] Generate Integers within a range in Java

* Moved files from java-numbers to java-numbers-2

java-numbers-2/src/main/java/com/baeldung/numbersinrange/NumbersInARange.java

@@ -0,0 +1,36 @@
+package com.baeldung.numbersinrange;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+public class NumbersInARange {
+
+    public List<Integer> getNumbersInRange(int start, int end) {
+        List<Integer> result = new ArrayList<>();
+        for (int i = start; i < end; i++) {
+            result.add(i);
+        }
+        return result;
+    }
+
+    public List<Integer> getNumbersUsingIntStreamRange(int start, int end) {
+        return IntStream.range(start, end)
+          .boxed()
+          .collect(Collectors.toList());
+    }
+
+    public List<Integer> getNumbersUsingIntStreamRangeClosed(int start, int end) {
+        return IntStream.rangeClosed(start, end)
+          .boxed()
+          .collect(Collectors.toList());
+    }
+
+    public List<Integer> getNumbersUsingIntStreamIterate(int start, int limit) {
+        return IntStream.iterate(start, i -> i + 1)
+          .limit(limit)
+          .boxed()
+          .collect(Collectors.toList());
+    }
+}

java-numbers-2/src/main/java/com/baeldung/numbersinrange/RandomNumbersInARange.java

@@ -0,0 +1,22 @@
+package com.baeldung.numbersinrange;
+
+import java.util.Random;
+
+public class RandomNumbersInARange {
+
+    public int getRandomNumber(int min, int max) {
+        return (int) ((Math.random() * (max - min)) + min);
+    }
+
+    public int getRandomNumberUsingNextInt(int min, int max) {
+        Random random = new Random();
+        return random.nextInt(max - min) + min;
+    }
+
+    public int getRandomNumberUsingInts(int min, int max) {
+        Random random = new Random();
+        return random.ints(min, max)
+          .findFirst()
+          .getAsInt();
+    }
+}