how to use setter getter in java android?

Question

i try to use encapsulation (setter getter) in my file java in my project android. but it not work, i don't know why. can you help me? i'll give my code

it's my setter and getter in Tahsin1_Jurus6.java

public class Tahsin1_Jurus6 extends Activity {

String judul;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    // this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.tahsin1_jurus6);
}

public String getJudul() {
    return judul;
}

public void setJudul(String judul) {
    this.judul = judul;
}

public void contoh_ba(View view) {
    setJudul("Contoh huruf Ba");
    Intent tah1_jurus6_contoh = new Intent(Tahsin1_Jurus6.this,
            Tahsin1_Jurus6_Contoh.class);
    startActivity(tah1_jurus6_contoh);
    this.finish();
}

and in this class, i try to call value of "judul", and i want set my "textView1" with value of "judul"

public class Tahsin1_Jurus6_Contoh extends Activity {

TextView judul;
ImageView contoh;
String nama_judul = "dudud", nama_gambar = "";
Tahsin1_Jurus6 t1j6 = new Tahsin1_Jurus6();

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.tahsin1_jurus6_contoh);

    judul = (TextView) findViewById(R.id.textView1);
    contoh = (ImageView) findViewById(R.id.imageView1);
    nama();
    setNama_judul();
}

public void nama() {
    nama_judul = t1j6.getJudul();
    judul.setText(nama_judul);
    judul.setTextSize(20);
}

Answer 1

you need to create New Class for getters/setters

  public class JudulData
  {
    string judul;
    public String getJudul() {
        return judul;
    }

    public void setJudul(String judul) {
        this.judul = judul;
    }

  }

Use it by creating instance of class

JudulData jd=new JudulData();
//getting
jd.getJudul();
//setting
jg.setJudul("stringvalue");

Answer 2

If you want to parse data beetween 2 activity in Android, you need to use Intent.
In your code just modify the Intent in Tahsin1_Jurus6 like this

Intent tah1_jurus6_contoh = new Intent(Tahsin1_Jurus6.this,
            Tahsin1_Jurus6_Contoh.class);
 tah1_jurus6_contoh.putExtra("name", ""+getJudul()); //the keyword is name
 startActivity(tah1_jurus6_contoh);

And in the Tahsin1_Jurus6_Contoh you should get the value like this

@Override
protected void onCreate(Bundle savedInstanceState) {
    ...     
    String judul = getIntent().getStringExtra("name"); //get value by keyword
    ...
}

Hope this help

Answer 3

You need to create a separate class as rajan ks wrote. Your above code is written in an android activity . Create a new java class file (this does not come with an XML layout file) and do the above.