get with apache components

hoge.scala

import org.apache.http.client.methods.HttpGet
import org.apache.http.impl.client.DefaultHttpClient
import org.apache.http.HttpResponse
import org.apache.http.HttpStatus


package something {
  object ika {
    val client = new DefaultHttpClient
    def do_post(u: String): Unit = {
      val get = new HttpGet(u)
      val response:HttpResponse = client.execute(get)
      if (response.getStatusLine.getStatusCode == HttpStatus.SC_OK) {
        println(response.getEntity)
      }
    }
    def main(args: Array[String]) {
      args match {
        case Array(u) => {
          this.do_post(u)
        }
        case _ =>
          println("hello apache!")
      }
    }
  }
}