AndroidButton

public class ArabaKontrol extends AppCompatActivity {

    private TextView resultTEXT;
    private ImageButton mic;

    Button btn2, btn3, btn4, btn5, btn6;

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

        setContentView(R.layout.activity_araba_kontrol);

        resultTEXT = (TextView)findViewById(R.id.TVresult);
        mic = (ImageButton)findViewById(R.id.imageButton);


        btn2 = (Button)findViewById(R.id.button2);
        btn3 = (Button)findViewById(R.id.button3);
        btn4 = (Button)findViewById(R.id.button4);
        btn5 = (Button)findViewById(R.id.button5);
        btn6 = (Button)findViewById(R.id.button6);

        komutlar();


        btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ileri();
            }
        });

        btn3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                geri();
            }
        });

        btn4.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dur();
            }
        });

        btn5.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                sag();
            }
        });

        btn6.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                sol();
            }
        });
}

public void komutlar(){
        String komut = resultTEXT.getText().toString();
        if (komut.equals("Go") || resultTEXT.getText() == "Go")
        {
            //btn2.performClick();
            //btn2 = (Button)findViewById(R.id.button2);
            /*
            btn2.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    ileri();
                }
            });
        */
        }
        if (komut.equals("dur") || resultTEXT.getText() == "dur")
        {
            //btn4.performClick();
            //btn4 = (Button)findViewById(R.id.button4);
            /*
            btn4.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    dur();
                }
            });
            */
        }
}