first commit

Multi3.java

@@ -0,0 +1,12 @@
+// write a java code by implementing runnable interface.
+
+class Multi3 implements Runnable{
+  public void run(){
+    System.out.println("thread is running...");
+  }
+  public static void main(String args[]){
+    Multi3 m1 = new Multi3();
+    Thread t1 = new Thread(m1);
+    t1.start();
+  }
+}