navigate to another activity in android

1Intent intent = new Intent(this, DisplayMessageActivity.class);
2        intent.putExtra(key:,value:);
3        startActivity(intent);

1OnClickListener onClickListener = new OnClickListener() {
2    @Override
3    public void onClick(View v) {
4        startActivity(new Intent(action));
5    }
6};
7
8Button button = (Button) findViewById(id);
9button.setOnClickListener(onClickListener);