Android Example Edit Text

FieldDemo.java
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package com.kites.fielddemo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;

public class FieldDemo extends Activity {

public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);

EditText fld=(EditText)findViewById(R.id.field);
fld.setText("Hello " +"World");
String st =fld.getText();

}
}

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main.xml
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<?xml version="1.0" encoding="utf-8"?>
<EditText
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/field"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:singleLine="false"
/>