How can I find the latitude and longitude from address?

public void goToLocationFromAddress(String strAddress) {
    //Create coder with Activity context - this
    Geocoder coder = new Geocoder(this);
    List<Address> address;

    try {
        //Get latLng from String
        address = coder.getFromLocationName(strAddress, 5);

        //check for null
        if (address != null) {

            //Lets take first possibility from the all possibilities.
            try {
                Address location = address.get(0);
                LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());

                //Animate and Zoon on that map location
                mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
                mMap.animateCamera(CameraUpdateFactory.zoomTo(15));
            } catch (IndexOutOfBoundsException er) {
                Toast.makeText(this, "Location isn't available", Toast.LENGTH_SHORT).show();
            }

        }


    } catch (IOException e) {
        e.printStackTrace();
    }
}

public LatLang getLatLangFromAddress(String strAddress){
    Geocoder coder = new Geocoder(this, Locale.getDefault());
    List<Address> address;
    try {
        address = coder.getFromLocationName(strAddress,5);
        if (address == null) {
                return new LatLang(-10000, -10000);
            }
            Address location = address.get(0);
            return new LatLang(location.getLatitude(), location.getLongitude());
        } catch (IOException e) {
            return new LatLang(-10000, -10000);
        }
    }            

LatLang is a pojo class in this case.

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> permission is not required.

I know I am too late for the contribution of 10 years old question, in the year 2021. The following code is fully complete working code.

code for activity_main.xml:-

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Enter Address"
    android:id="@+id/addressTV"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:layout_alignParentStart="true" />

<EditText
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/addressET"
    android:layout_alignParentTop="true"
    android:layout_toEndOf="@+id/addressTV"
    android:singleLine="true"
    android:hint="1600 Pennsylvania Ave NW Washington DC 20502" />

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Show Lat/Long"
    android:id="@+id/addressButton"
    android:layout_below="@+id/addressTV"
    android:layout_toEndOf="@+id/addressTV"
    android:layout_marginTop="50dp" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text=""
    android:id="@+id/latLongTV"
    android:layout_centerVertical="true"
    android:layout_toEndOf="@+id/addressTV" />

AndroidManifest.xml Give following permission:

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

MainActivity.java

public class MainActivity extends Activity {
Button addressButton;
TextView addressTV;
TextView latLongTV;
EditText addressET;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_main);

    addressET = findViewById(R.id.addressET);
    addressTV = (TextView) findViewById(R.id.addressTV);
    latLongTV = (TextView) findViewById(R.id.latLongTV);

    addressButton = (Button) findViewById(R.id.addressButton);
    addressButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg0) {


            String address = addressET.getText().toString();

            GeocodingLocation locationAddress = new GeocodingLocation();
            locationAddress.getAddressFromLocation(address,
                    getApplicationContext(), new GeocoderHandler());


           
        }
    });

}

private class GeocoderHandler extends Handler {
    @Override
    public void handleMessage(Message message) {
        String address;
        switch (message.what) {
            case 1:
                Bundle bundle = message.getData();
                address = bundle.getString("address");
                break;
            default:
                address = null;
        }
        latLongTV.setText(address);
    }
}

}

GeocodingLocation.java

public class GeocodingLocation {



public static void getAddressFromLocation(String locationAddress, Context context,  Handler handler) {
    Thread thread = new Thread() {
        @Override
        public void run() {
            Geocoder geocoder = new Geocoder(context, Locale.getDefault());
            String result = null;

            try {
                List addressList = geocoder.getFromLocationName(locationAddress,1);
                if (addressList != null && addressList.size() > 0){
                    Address address = (Address) addressList.get(0);
                    StringBuilder stringBuilder = new StringBuilder();
                    stringBuilder.append(address.getLatitude()).append("\n");
                    stringBuilder.append(address.getLongitude()).append("\n");
                    result = stringBuilder.toString();
                }
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                Message message = Message.obtain();
                message.setTarget(handler);
                if (result != null){
                    message.what = 1;
                    Bundle bundle = new Bundle();
                    result = "Address   :   "+locationAddress+
                            "\n\n\nLatitude and longitude\n"+result;
                    bundle.putString("address",result);
                    message.setData(bundle);
                }
                message.sendToTarget();
            }
        }
    };
    thread.start();
}

}