public class MainActivity2 extends AppCompatActivity {
    ListView lview;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        lview = (ListView) findViewById(R.id.list);

        ArrayList obj = new ArrayList();
        obj.add("ABC");
        obj.add("12345");
        obj.add("XYZ");

        ArrayAdapter abc = new ArrayAdapter(getApplicationContext(),android.R.layout.simple_list_item_1,obj);
        lview.setAdapter(abc);

    }
}