Thread logs an incrementing number every 250ms

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/src/main/java/com/ploedige/threadtest/MainActivity.java

@@ -10,5 +10,8 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        TestThread testThread = new TestThread();
+        testThread.run();
     }
 }

app/src/main/java/com/ploedige/threadtest/TestThread.java

@@ -0,0 +1,18 @@
+package com.ploedige.threadtest;
+
+import android.util.Log;
+
+public class TestThread extends Thread{
+    public void run() {
+        while (true){
+            for(int i =1; i<=20; i++){
+                Log.v("TestThread", String.valueOf(i));
+                try {
+                    this.sleep(250);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+}