Create 19. Count shorter strings

Week 2: Methods, strings and lists/19. Count shorter strings

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+Write the method
+
+int countShorter(ArrayList<String> strings, int length)
+
+which counts the number of strings in the list string that have less than length characters.
+
+
+Example method call:
+public static void main(String[] args){
+    ArrayList<String> test = new ArrayList<>();
+    test.add("Huu");
+    test.add("Haa");
+    test.add("Huhuu");
+    test.add("Hohoo");
+
+    int shorterthan4= countShorter(test, 4);
+    System.out.println(shorterthan4);
+}
+
+Program outputs:
+2
+
+
+
+
+
+
+import java.util.Random;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class Test{
+    public static void main(String[] args){
+        final Random r = new Random();
+        
+        test(new String[] {"first", "second", "third", "fourth", "five", "six", "7"}, 5);
+        test("first second third fourth programming class method java variable".split(" "), 6);
+        test("a ab abc abcd xyz xy x z".split(" "), 2);
+    }
+    
+    public static void test(String[] l, int length) {
+        ArrayList<String> list = new ArrayList<>(Arrays.asList(l));
+        System.out.println("Testing with list " + list);
+        System.out.print("Strings, that contain under " + length + " characters: ");
+        System.out.println(countShorter(list, length));
+        System.out.println("");
+    }
+
+
+    //ADD
+    public static int countShorter(ArrayList<String> strings, int length) {
+      int count = 0;
+      for (String str: strings) {
+        if (str.length() < length) {
+          count++;
+        }
+      }
+      return count;
+    }
+
+
+
+}
+    
+
+
+
+
+
+Testing with list [first, second, third, fourth, five, six, 7]
+Strings, that contain under 5 characters: 3
+
+Testing with list [first, second, third, fourth, programming, class, method, java, variable]
+Strings, that contain under 6 characters: 4
+
+Testing with list [a, ab, abc, abcd, xyz, xy, x, z]
+Strings, that contain under 2 characters: 3
+
+
+