Get system properties of os name and version

package com.exercise.AndroidOSversion;

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

public class AndroidOSversionActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        TextView msg = (TextView)findViewById(R.id.msg);
        msg.setText(System.getProperty("os.name") 
          + " : " 
          + System.getProperty("os.version"));
    }
}