diff --git a/Kasutus.class b/Kasutus.class
new file mode 100644
index 0000000..34f4b18
Binary files /dev/null and b/Kasutus.class differ
diff --git a/Kasutus.java b/Kasutus.java
new file mode 100644
index 0000000..ea9147a
--- /dev/null
+++ b/Kasutus.java
@@ -0,0 +1,32 @@
+import java.util.*;
+
+public class Kasutus{
+	public static void main(String[] arg){
+        Romb pindala = new Pindala();
+		Romb umbermoot = new Umbermoot();
+		Scanner scanning = new Scanner(System.in);
+		
+		System.out.println("\nSisesta rombi külg: ");
+ 		double a=scanning.nextDouble();
+		System.out.println("Sisesta rombi 1 diagonaal: ");
+ 		double d1=scanning.nextDouble();
+		System.out.println("Sisesta rombi 2 diagonaal: ");
+ 		double d2=scanning.nextDouble();
+		
+		System.out.println("\nRombi pindala on " + pindala.f(d1,d2,a));
+		System.out.println("Rombi umbermoot on " + umbermoot.f(a,d1,d2));
+		
+    }
+}
+ 
+ /*
+ Sisesta rombi külg:
+3
+Sisesta rombi 1 diagonaal:
+4
+Sisesta rombi 2 diagonaal:
+5
+
+Rombi pindala on 10.0
+Rombi umbermoot on 12.0
+ */
\ No newline at end of file
diff --git a/Pindala.class b/Pindala.class
new file mode 100644
index 0000000..eb184dc
Binary files /dev/null and b/Pindala.class differ
diff --git a/Pindala.java b/Pindala.java
new file mode 100644
index 0000000..e281fa0
--- /dev/null
+++ b/Pindala.java
@@ -0,0 +1,5 @@
+public class Pindala implements Romb{
+ 	public double f(double d1, double d2, double a){
+		return (d1*d2)/2;
+ 	}
+ } 
\ No newline at end of file
diff --git a/Romb.class b/Romb.class
new file mode 100644
index 0000000..2574612
Binary files /dev/null and b/Romb.class differ
diff --git a/Romb.java b/Romb.java
new file mode 100644
index 0000000..3ad9a1d
--- /dev/null
+++ b/Romb.java
@@ -0,0 +1,3 @@
+public interface Romb{
+    	public double f(double d1, double d2, double a);
+ } 
\ No newline at end of file
diff --git a/Umbermoot.class b/Umbermoot.class
new file mode 100644
index 0000000..3525b38
Binary files /dev/null and b/Umbermoot.class differ
diff --git a/Umbermoot.java b/Umbermoot.java
new file mode 100644
index 0000000..bc3b19e
--- /dev/null
+++ b/Umbermoot.java
@@ -0,0 +1,5 @@
+public class Umbermoot implements Romb{
+ 	public double f(double a, double d1, double d2){
+ 		return 4*a;
+    }
+} 
\ No newline at end of file