8. Что такое валидация?;

https://job4j.ru/profile/exercise/22/task-view/162
Temzor · Nov 29, 2023 · 069b4fa · 069b4fa
1 parent 0956bce
commit 069b4fa
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Showing 3 changed files with 28 additions and 9 deletions.
diff --git a/src/main/java/ru/j4j/tracker/Tracker.java b/src/main/java/ru/j4j/tracker/Tracker.java
@@ -37,12 +37,12 @@ public Item findById(int id) {
 
     public boolean replace(int id, Item item) {
         int index = indexOf(id);
-        if (index != -1) {
+        boolean rsl = index != -1;
+        if (rsl) {
             item.setId(id);
             items[index] = item;
-            return true;
         }
-        return false;
+        return rsl;
     }
 
     public int indexOf(int id) {
@@ -56,12 +56,14 @@ public int indexOf(int id) {
         return rsl;
     }
 
-    public void delete(int id) {
+    public boolean delete(int id) {
         int index = indexOf(id);
-        if (index != -1) {
+        boolean rsl = index != -1;
+        if (rsl) {
             System.arraycopy(items, index + 1, items, index, size - index - 1);
             items[size - 1] = null;
             size--;
         }
+        return rsl;
     }
 }
diff --git a/src/main/java/ru/j4j/validate/DivByZero.java b/src/main/java/ru/j4j/validate/DivByZero.java
@@ -0,0 +1,21 @@
+package ru.j4j.validate;
+
+public class DivByZero {
+    public static int div(int first, int second) {
+        int rsl = -1;
+        if (second == 0) {
+            System.out.println("Div by 0, return def value -1");
+        } else {
+            rsl = first / second;
+        }
+        return rsl;
+    }
+
+    public static void main(String[] args) {
+        int rsl = div(10, 5);
+        System.out.println(rsl);
+
+        int rsl1 = div(10, 0);
+        System.out.println(rsl1);
+    }
+}
diff --git a/src/test/java/ru/j4j/tracker/TrackerTest.java b/src/test/java/ru/j4j/tracker/TrackerTest.java
@@ -61,10 +61,6 @@ public void whenReplaceItemIsSuccessful() {
         int id = item.getId();
         Item updateItem = new Item("Bug with description");
         tracker.replace(id, updateItem);
-        System.out.println(item.getId());
-        System.out.println(tracker.indexOf(id));
-        System.out.println(tracker.findById(id));
-        System.out.println(item.getId() == id);
         assertThat(tracker.findById(id).getName()).isEqualTo("Bug with description");
     }