Created
June 4, 2012 14:26
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System.getProperties()でシステムプロパティ情報を取得
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| scala> import java.util.{List => JList, ArrayList => JArrayList} | |
| import java.util.{List=>JList, ArrayList=>JArrayList} | |
| scala> import scala.collection.JavaConversions._ | |
| import scala.collection.JavaConversions._ | |
| scala> val p = System.getPropert | |
| getProperties getProperty | |
| scala> val p = System.getProperties().toMap | |
| p: scala.collection.immutable.Map[String,String] = | |
| Map(java.io.tmpdir -> /var/folders/mg/q1wyn9sd25n1gx6v03398qr80000gn/T/, line.separator -> " | |
| "...... | |
| scala> p.keys | |
| res0: Iterable[String] = Set(java.io.tmpdir, line.separator, mrj.version, path.separator, sun.management.compiler, sun.cpu.endian, java.specification.version, java.vm.specification.name, ..... | |
| scala> p.apply("os.name") | |
| res1: String = Mac OS X | |
| scala> p.getOrElse("os.name","None") | |
| res2: String = Mac OS X |
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