title: Remove square brackets [] from Array in scala
body: <p>I have the date with square brackets <strong>[2014-11-08 06:27:00.0]</strong>, and a want remove it.</p>
  
  <p>Expected output is <strong>2014-11-08 06:27:00.0</strong></p>
  
  <pre><code>val conf = new SparkConf(true)
     .set("spark.cassandra.connection.host", "127.0.0.1").setAppName("CasteDate").setMaster("local[*]")
     .set("spark.cassandra.connection.port", "9042")
     .set("spark.driver.allowMultipleContexts", "true")
     .set("spark.streaming.receiver.writeAheadLog.enable", "true")
  
  val sc = new SparkContext(conf)
  
  val ssc = new StreamingContext(sc, Seconds(1))
  val csc=new CassandraSQLContext(sc)
  
  val sqlContext = new org.apache.spark.sql.SQLContext(sc)
  
  var input: SimpleDateFormat   = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S")
  input.setTimeZone(TimeZone.getTimeZone("GMT"))
  var dia: SimpleDateFormat  = new SimpleDateFormat("dd")
  var mes: SimpleDateFormat = new SimpleDateFormat("MM")
  var ano: SimpleDateFormat = new SimpleDateFormat("yyyy")
  var horas: SimpleDateFormat = new SimpleDateFormat("HH")
  var minutos: SimpleDateFormat  = new SimpleDateFormat("mm")
  
  val data=csc.sql("SELECT timecol from smartgrids.analyzer_temp").collect()
  
  import sqlContext.implicits._
  
  val result = data.map(row =&gt; {
                           val day = dia.format(input.parse(row.toString()))
                           val month = mes.format(input.parse(row.toString()))
                           val year = ano.format(input.parse(row.toString()))
                           val hour = horas.format(input.parse(row.toString()))
                           val minute = minutos.format(input.parse(row.toString()))
                               })
  
  val collection = sc.parallelize(Seq(("day", 2), ("month", 2), ("year", 4), ("hour", 2), ("minute", 2)))
  collection.saveToCassandra("features", "datepart", SomeColumns("day", "month", "year", "hour", "minute"))
  sc.stop()         
  </code></pre>
  
  <p>After execute this code i receive the error:</p>
  
  <pre><code>   java.text.ParseException: Unparseable date: "[2015-08-20 21:01:00.0]" 
     at java.text.DateFormat.parse(DateFormat.java:366)
  </code></pre>
  
  <p>I think that this error is because the date have square brackets, so, i want remove it.</p>