Helloworld activity

MainActivity.java

@Override
    protected void onStart(){
        super.onStart();

        Button b = (Button)findViewById(R.id.buttonHello);
        b.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String name = ((EditText)findViewById(R.id.etNom)).getText().toString();
               Toast.makeText(view.getContext(), "Hello world from " + name + " !", Toast.LENGTH_LONG)
                        .show();
                Intent helloIntent = new Intent("hwb.helloworldbis.HELLO");
                helloIntent.putExtra("name", name);
                startActivity(helloIntent);
            }
        });
    }