diff --git a/liides.class b/liides.class
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diff --git a/liides.java b/liides.java
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+++ b/liides.java
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+public interface liides{
+    public double l(double x);
+}
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diff --git a/mootuhik.class b/mootuhik.class
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diff --git a/mootuhik.java b/mootuhik.java
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+++ b/mootuhik.java
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+public class mootuhik implements liides{
+    double kordaja;
+    public mootuhik(double kordaja){
+        this.kordaja=kordaja;
+    }
+    public double l(double x){
+        return x*kordaja;
+    }
+}
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diff --git a/rakendus.class b/rakendus.class
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diff --git a/rakendus.java b/rakendus.java
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+++ b/rakendus.java
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+import java.util.*;
+
+public class rakendus{
+	
+    public static double arvuta(liides l, double arv){
+        return l.l(arv);
+    }
+	
+    public static void main(String[] arg){
+        liides tollid_meetriteks=new mootuhik(0.0254);
+        liides jalad_meetriteks=new mootuhik(0.3048);
+        liides jardid_meetriteks=new mootuhik(0.9144);
+        liides miilid_meetriteks=new mootuhik(1609.344);
+		
+        System.out.println(arvuta(tollid_meetriteks, 125));
+        System.out.println(arvuta(jalad_meetriteks, 6.23));
+        System.out.println(arvuta(jardid_meetriteks, 12));
+        System.out.println(arvuta(miilid_meetriteks, 60));
+    }
+}
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