diff --git a/25june2025/main.java b/25june2025/Main.java
similarity index 100%
rename from 25june2025/main.java
rename to 25june2025/Main.java
diff --git a/26june2025/main.java b/26june2025/Main.java
similarity index 100%
rename from 26june2025/main.java
rename to 26june2025/Main.java
diff --git a/27june2025/Main.java b/27june2025/Main.java
new file mode 100644
index 0000000..6bbf746
--- /dev/null
+++ b/27june2025/Main.java
@@ -0,0 +1,51 @@
+import java.util.Scanner;
+import java.util.concurrent.TimeUnit;
+
+public class Main {
+    public static void main(String[] args) throws InterruptedException {
+        for (int i = 1; i<=5;) {
+            System.out.println(i);
+            i++;
+        }
+        int a = 0;
+        while (a <= 5) {
+            System.out.println(a);
+            a++;
+        }
+        String[] liste = {"A","B","bu for ne la böyle pythonda sadece bu amaçla kullanıyordum"};
+        for (String hebele : liste) {
+            System.out.println(hebele);
+        }
+        /*
+        Scanner scanner = new Scanner(System.in);
+        int e = 1;
+        for (int f = scanner.nextInt(); f > 0;) {
+            e = e * f;
+            f = f - 1;
+        }
+        System.out.println(e);
+        */
+        //System.out.println(f);
+        int g = 0;
+        do {
+            g ++;
+            System.out.println(g);
+        } while (g < 10);
+        int deger = 0;
+        int sayi = 1337;
+        while (sayi > 0) {
+            deger += sayi % 10;
+            sayi = sayi / 10;
+        }
+        System.out.println(deger);
+        while (true) {
+            break;
+        }
+        //TimeUnit.SECONDS.sleep(3);
+        //Runtime.getRuntime().wait(3000);
+        System.out.println(System.getProperty("os.name"));
+        System.out.println(System.getenv().get("WAYLAND_DISPLAY"));
+        String m = "b";
+        String j = null;
+    }
+}