How to open a new layout after button click in android

Use the below code,

 Button next = (Button) findViewById(R.id.mybutton1);

next.setOnClickListener(new View.OnClickListener()
{
            public void onClick(View view)
          {
                Intent myIntent = new Intent(view.getContext(), my_activity.class);
                startActivityForResult(myIntent, 0);
            }

   });