go to activity android

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

1//going to another activity while ending the 
2//previous one so that users cannot go back
3btListe = (ImageButton)findViewById(R.id.Button_Liste);
4    btListe.setOnClickListener(new OnClickListener()
5    {    public void onClick(View v)
6        {
7            intent = new Intent(main.this, ListViewImage.class);
8            startActivity(intent);
9            finish();
10        }
11    });

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);