class MainActivity

package org.androidtown.mylist2;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class MainActivity extends ListActivity {
    String[] names={"소녀시대", "걸스데이", "씨스타", "티아라"};

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

        setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,
                    names
                ));

    }


}

R.layout.activity_main

package org.androidtown.mylist2;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class MainActivity extends ListActivity {
    String[] names={"소녀시대", "걸스데이", "씨스타", "티아라"};

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

        setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,
                    names
                ));

    }


}