diff --git a/src/main/java/com/geekbrains/HomeWorkApp.java b/src/main/java/com/geekbrains/HomeWorkApp.java
index fe71ef6..74fe60a 100644
--- a/src/main/java/com/geekbrains/HomeWorkApp.java
+++ b/src/main/java/com/geekbrains/HomeWorkApp.java
@@ -4,4 +4,42 @@ public class HomeWorkApp {
     public static void main(String[] args) {
         
     }
+
+    public static boolean isSumBetween10And20(int a, int b) {
+        int sum = a+b;
+        if (sum>10 && sum<=20) {
+            return true;
+        }
+        return false;
+    }
+
+    public static void isPositiveOrNegativePrint(int a) {
+        if (a>=0)
+            System.out.println("Число положтельное");
+        else
+            System.out.println("Число отрицательное");
+    }
+
+    public static boolean isPositiveOrNegativeReturn(int a) {
+        if (a>=0)
+            return false;
+        else
+            return true;
+    }
+
+    public static void printStringSeveralTimes(String str, int count) {
+        for (int i = 0; i < count; i++) {
+            System.out.println(str);
+        }
+
+    }
+
+    public static boolean isLeapYear (int year) {
+        if ((year%4==0 && year%100!=0) || (year%400==0)) {
+            return true;
+        }
+        else
+            return false;
+    }
+
 }