Initial data commit

Task/Loops-Wrong-ranges/Java/loops-wrong-ranges.java

@@ -0,0 +1,42 @@
+import java.util.ArrayList;
+import java.util.List;
+
+public class LoopsWrongRanges {
+
+    public static void main(String[] args) {
+        runTest(new LoopTest(-2, 2, 1, "Normal"));
+        runTest(new LoopTest(-2, 2, 0, "Zero increment"));
+        runTest(new LoopTest(-2, 2, -1, "Increments away from stop value"));
+        runTest(new LoopTest(-2, 2, 10, "First increment is beyond stop value"));
+        runTest(new LoopTest(2, -2, 1, "Start more than stop: positive increment"));
+        runTest(new LoopTest(2, 2, 1, "Start equal stop: positive increment"));
+        runTest(new LoopTest(2, 2, -1, "Start equal stop: negative increment"));
+        runTest(new LoopTest(2, 2, 0, "Start equal stop: zero increment"));
+        runTest(new LoopTest(0, 0, 0, "Start equal stop equal zero: zero increment"));
+    }
+
+    private static void runTest(LoopTest loopTest) {
+        List<Integer> values = new ArrayList<>();
+        for (int i = loopTest.start ; i <= loopTest.stop ; i += loopTest.increment ) {
+            values.add(i);
+            if ( values.size() >= 10 ) {
+                break;
+            }
+        }
+        System.out.printf("%-45s %s%s%n", loopTest.comment, values, values.size()==10 ? " (loops forever)" : "");
+    }
+
+    private static class LoopTest {
+        int start;
+        int stop;
+        int increment;
+        String comment;
+        public LoopTest(int start, int stop, int increment, String comment) {
+            this.start = start;
+            this.stop = stop;
+            this.increment = increment;
+            this.comment = comment;
+        }
+    }
+
+}