Creating a basic application on ANDROID STUDIO

Android studio is a perfectly developed application that you can do whatever you want to see on phones. With having a great ability, it is also easy to use. The program i share down belongs to me and i created it in a really short time with having no knowledge before. And it really works perfectly. So i wanted to share with you too.

The program is like i shared:

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package com.example.mahmuttatar.sehimteyit;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class SehimTeyit extends AppCompatActivity {

TextView giris1, giris2, giris3, giris4, sonuc;
Button button;
EditText deger1, deger2, deger3, deger4;
double formul;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sehim_teyit);


    giris1= (TextView) findViewById(R.id.giris1);
    giris2= (TextView) findViewById(R.id.giris2);
    giris3= (TextView) findViewById(R.id.giris3);
    giris4= (TextView) findViewById(R.id.giris4);
    sonuc= (TextView) findViewById(R.id.sonuc);
    button= (Button) findViewById(R.id.button);
    deger1= (EditText) findViewById(R.id.deger1);
    deger2= (EditText) findViewById(R.id.deger2);
    deger3= (EditText) findViewById(R.id.deger3);
    deger4= (EditText) findViewById(R.id.deger4);

    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {





            double deger1_int = Double.parseDouble(deger1.getText().toString());
            double deger2_int = Double.parseDouble(deger2.getText().toString());
            double deger3_int = Double.parseDouble(deger3.getText().toString());
            double deger4_int = Double.parseDouble(deger4.getText().toString());
            //formul = (deger1_int+deger2_int+deger3_int+deger4_int);
            formul= Math.pow(((Math.sqrt(((Math.tan(Math.toRadians((deger1_int-100)*0.9))+Math.tan(Math.toRadians((100-deger4_int)*0.9)))*deger3_int))+Math.sqrt(deger2_int))/2),2);
            //formul = (Math.toDegrees(Math.atan((Math.pow(((Math.sqrt(deger1_int)*2)-Math.sqrt(deger2_int)),2)/deger3_int)-Math.tan(Math.toRadians((100-deger4_int)*(0.9))))*(1.111111))+100);

            // =DERECE(ATAN((KUVVET(((KAREKÖK(B2)*2)-KAREKÖK(B3));2)/B4)-TAN(RADYAN((100-B5)*0,9)))*(1/0,9))+100
            // (((KAREKÖK(B2)*2)-KAREKÖK(B3));2)
            // =DERECE(ATAN((KUVVET(((KAREKÖK(B2)*2)-KAREKÖK(B3));2)/B4)
            // -TAN(RADYAN((100-B5)*0,9)))*(1/0,9))+100
            // =DERECE(ATAN((KUVVET /B4)
            // -TAN(RADYAN((100-B5)*0,9)))*(1/0,9))+100 //
            // B2 1, B3 2, B4 3, B5 4


            String deger1=Double.toString(formul);
            sonuc.setText(deger1);

        }
    });

}

}

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Writing this program to Android Studio is as it showed down:

And its lines couldn't see at first image:

After writing the program and "Run" it it starst to show your VIRTUAL ANDROID EMULATOR (Virtual Phone You selected):

Then your Virtual Phone Starts like that:

Then The aplication we wrote its program starts by itself like that:

And it works with my writing measurements... It shows the number i needed:

So you can also create an application on Android Studio easily with working on a bit...

Thanks..