What is User defined Methods in Android studio

 User defined Methods

User-defined methods mean, a custom method is called a user-defined method.

This method set is written outside of the content view.

public class MainActivity extends AppCompatActivity {

@SuppressLint("MissingInflatedId")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

makeToast();

} // <<<<<<<<----***END OnCreate Method***---->>>>>>>>

private void makeToast(){
Toast.makeText(MainActivity.this,"Hello",Toast.LENGTH_LONG).show();
}

}

Alert Dialog Create Method

private void alertDialog(){
new AlertDialog.Builder(MainActivity.this)
.setTitle("This Title")
.setMessage("Hello I'm a massage")
.show();
}

Advanced User defined Methods

User-defined method এর মধ্যে তার নির্দিষ্ট খাবার দেয়া যায়, যেমন সে কি String খাবে নাকি int,float খাবে তা  defined করে দেওয়া যায়

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

makeToast("Hello This is a Toast");

} // <<<<<<<<----***END OnCreate Method***---->>>>>>>>

private void makeToast(String myToast){
Toast.makeText(MainActivity.this,""+myToast,Toast.LENGTH_LONG).show();
}