[Solved] Passing data and add other data to it and pass it again [duplicate]

Activity A:

pass data to activity B

Intent i = new Intent(getApplicationContext,ActivityB.class);
i.putExtra("DataA",dataA);
i.startActivity(i);

retrive data in ActvityB

 String a;

Intent i = getIntent();
a= i.getStringExtra("DataA");

pass data in actvityc from ActivityB

 Intent i = new Intent(getApplicationContext,ActivityC.class);
 i.putExtra("DataA",a);
 i.putExtra("DataB",b);
 i.startActivity(i);

retrive data in ActvityC

String a,b;
 Intent i = getIntent();
 a= i.getStringExtra("DataA");
 b= i.getStringExtra("DataB");