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POPlease explain "this" to me
 

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    <p>I've read hundreds of explanations on "this" in java and I'm really having trouble grasping it. I'm learning android and java side-by-side, I know it's harder that way but I'm enjoying it. The one thing I'm getting killed on is "this"... I'm pasting code from a tutorial below that utilizes "this" one time. I was going to just put a piece of the code but want to be as helpful as possible.</p> <p>I'm looking for a good explanation of "this" that I can add to my notes. Any and all help is appreciated. Thanks in advance.</p> <p>example code starts below:</p> <pre><code>import android.app.Activity; import android.os.Bundle; import android.widget.Toast; import android.view.View; import android.content.DialogInterface; import android.app.Dialog; import android.app.AlertDialog; public class DialogActivity extends Activity { CharSequence[] items = { "Google", "Apple", "Microsoft" }; boolean[] itemsChecked = new boolean [items.length]; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } public void onClick(View v) { showDialog(0); } @Override protected Dialog onCreateDialog(int id) { switch (id) { case 0: return new AlertDialog.Builder(this) .setIcon(R.drawable.ic_launcher) .setTitle("This is a dialog with some simple text...") .setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { Toast.makeText(getBaseContext(), "OK Clicked!", Toast.LENGTH_SHORT).show(); } } ) .setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { Toast.makeText(getBaseContext(), "Cancel clicked!", Toast.LENGTH_SHORT).show(); } } ) .setMultiChoiceItems(items, itemsChecked, new DialogInterface.OnMultiChoiceClickListener() { public void onClick(DialogInterface dialog, int which, boolean isChecked) { Toast.makeText(getBaseContext(), items[which] + (isChecked ? " checked!":" unchecked!"), Toast.LENGTH_SHORT).show(); } } ).create(); } return null; } } </code></pre>
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    1. COThis has been covered on Stackoverflow before. Search for [Java + This](http://stackoverflow.com/questions/tagged/java+this) tags to see many examples.
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      1. USFoamyGuy
    2. COIf Kazekage Gaara's answer helped you, could you mark it as an answer please?
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      1. USRobotnik
 

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