1. MainActivity
public void gotoSecondActivity(View v){
Intent it = new Intent(this, SecondActivity.class);
startActivity(it);
}
public void gotoThirdActivity(View v){
Intent it = new Intent(this, ThirdActivity.class);
startActivity(it);
}
2. SecondActivity
public void goBack(View v){
finish();
}
3. ThirdActivity
public void goBack(View v){
finish();
}
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