Using intent.getStringExtra from within an activity

I am relatively new to android. I have two applications A and B. I have an activity in A, lets name it x,开发者_运维问答 that would launch the application B. Now the intent sent by x contains StringExtra that I want the Starting activity in B to use. Is there a way for the activity in B to do that?

Thanks!

In Activity B:

getIntent().getStringExtra("KEY");

Just use Intent#getExtras() and then Bundle#getString()