Answers for "android intents"

android studio intent usage

Intent i = new Intent(MainActivity.this, ActivityTwo.class);
startActivity(i);

intent android

Intent intent = new Intent(MainActivity.this,MainActivity2.class);
 intent.putExtra("key",value);
 startActivity(intent);
////////////////////
 String string =getIntent().getStringExtra("key");

intent class for url and phone and others

Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.vogella.com/"));
startActivity(i);