diff --git a/exercises/exercise4/EvenlyDivisible.java b/exercises/exercise4/EvenlyDivisible.java
new file mode 100644
index 0000000..8a83e02
--- /dev/null
+++ b/exercises/exercise4/EvenlyDivisible.java
@@ -0,0 +1,19 @@
+import java.util.Scanner;
+
+public class EvenlyDivisible{
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter number1!");
+        int number1 = scan.nextInt();
+        System.out.println("Enter number2!");
+        int number2 = scan.nextInt();
+
+        if (number1 == 0 || number2 == 0) {
+        System.out.println("YOU ENTERED 0 !");
+        } else if (number1 % number2 == 0) {
+            System.out.println("TRUE!");
+        } else {
+            System.out.print("FALSE!");
+        }
+    }
+}
\ No newline at end of file
diff --git a/exercises/exercise4/FloatEquals.java b/exercises/exercise4/FloatEquals.java
new file mode 100644
index 0000000..a5e5882
--- /dev/null
+++ b/exercises/exercise4/FloatEquals.java
@@ -0,0 +1,17 @@
+import java.util.Scanner;
+
+public class FloatEquals {
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter float1");
+        float float1 = scan.nextFloat();
+        System.out.println("Enter float2");
+        float float2 = scan.nextFloat();
+
+        System.out.println("Enter tolerance!");
+        double tolerance = scan.nextDouble();
+
+        if (Math.abs(float1 - float2) < tolerance)
+            System.out.println("EQUAL!");
+    }
+}
\ No newline at end of file
diff --git a/exercises/exercise4/isAlpha.java b/exercises/exercise4/isAlpha.java
new file mode 100644
index 0000000..32f2635
--- /dev/null
+++ b/exercises/exercise4/isAlpha.java
@@ -0,0 +1,13 @@
+import java.util.Scanner;
+
+public class isAlpha{
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter ALPHA character!");
+        char value1 = scan.next().charAt(0);
+        int value2 = value1 - '0';
+        if (16 < value2 && value2 < 43 || 48 < value2 && value2 < 75)
+            System.out.println("TRUE!");
+    }
+}
+// In this code '0' = 48 so unicode - 48 is the output !!
\ No newline at end of file
diff --git a/exercises/exercise4/isAlpha2.java b/exercises/exercise4/isAlpha2.java
new file mode 100644
index 0000000..74b57c6
--- /dev/null
+++ b/exercises/exercise4/isAlpha2.java
@@ -0,0 +1,12 @@
+import java.util.Scanner;
+
+public class isAlpha2 {
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("ENTER ALPHA CHARACTER !");
+        char character = scan.next().charAt(0);
+        int unicode = (int) character;
+        if (65 <= unicode && unicode <= 90 || 97 <= unicode && unicode <= 122)
+            System.out.println("TRUE!");
+    }
+}
\ No newline at end of file