Android

public class MainActivity extends Activity 
{
    EditText inputText = null;
    ArrayList<String> ll = null;

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

        ll = new ArrayList<String>();

        inputText = (EditText) findViewById(R.id.inputText);

        Button add = (Button) findViewById(R.id.add);
        add.setOnClickListener(new OnClickListener()
        {
            @Override
            public void onClick(View v) 
            {
                String item = inputText.getText().toString();
                ll.add(item);			

                inputText.setText("");
            }			
        });

        Button results = (Button) findViewById(R.id.results);
        results.setOnClickListener(new OnClickListener()
        {
            @Override
            public void onClick(View v) 
            {
                android.util.Log.d("Test", "List has " + ll.size() + " items.");																								

                HashSet<String> set = new HashSet<String>(ll);
                for (String temp : set)
                    android.util.Log.d("Test", temp + " was found " + Collections.frequency(ll, temp) + " times.");
            }			
        });
    }
}