Martinus Ady H. BloG

Pasti teman-teman sekarang sudah tahu kan bagaimana cara menjalankan aplikasi yang ditulis dengan menggunakan bahasa pemrograman Java ? Yaps cara-nya sih sangat sederhana, kita tinggal mengetikkan perintah java [nama_class] untuk menjalankan sebuah class di java dan mengetikkan perintah java -jar [nama_app.jar] untuk menjalankan sebuah file jar di java Nah sekarang jika sudah tahu, pernahkah teman-teman melihat opsi apa saja yang terdapat pada perintah java ??? Kalau ada yang bingung bagaimana cara menampilkan opsi yang terdapat pada perintah java, cobalah jalankan perintah java tanpa memberikan parameter apapun dan jika benar maka kita akan mendapatkan tampilan seperti dibawah ini :

martinus@martinusadyh:~/Latihan/Java$ java
Usage: java [-options] class [args...]
           (to execute a class)
   or  java [-options] -jar jarfile [args...]
           (to execute a jar file)

where options include:
    -d32          use a 32-bit data model if available

    -d64          use a 64-bit data model if available
    -client	  to select the "client" VM
    -server	  to select the "server" VM
    -hotspot	  is a synonym for the "client" VM  [deprecated]
                  The default VM is server,
                  because you are running on a server-class machine.

    -cp 
    -classpath 
                  A : separated list of directories, JAR archives,
                  and ZIP archives to search for class files.
    -D=
                  set a system property
    -verbose[:class|gc|jni]
                  enable verbose output
    -version      print product version and exit
    -version:
                  require the specified version to run
    -showversion  print product version and continue
    -jre-restrict-search | -jre-no-restrict-search
                  include/exclude user private JREs in the version search
    -? -help      print this help message
    -X            print help on non-standard options
    -ea[:
...|:]
    -enableassertions[:
...|:]
                  enable assertions
    -da[:
...|:]
    -disableassertions[:
...|:]
                  disable assertions
    -esa | -enablesystemassertions
                  enable system assertions
    -dsa | -disablesystemassertions
                  disable system assertions
    -agentlib:
[=
]
                  load native agent library
, e.g. -agentlib:hprof
                    see also, -agentlib:jdwp=help and -agentlib:hprof=help
    -agentpath:
[=
]
                  load native agent library by full pathname
    -javaagent:[=
]
                  load Java programming language agent, see java.lang.instrument
    -splash:
                  show splash screen with specified image
martinus@martinusadyh:~/Latihan/Java$

Hm.. banyak juga yah ternyata Nah disini kita akan mencoba-coba opsi verbose pada perintah java diatas, dan jika kita lihat pada halaman bantuan yang ditampilkan diatas. Opsi verbose hanya memberikan keterangan enable verbose output seperti dibawah ini :

    -verbose[:class|gc|jni]
                  enable verbose output
    -version      print product version and exit

Nah apakah teman-teman sudah tahu apa sih fungsi dari opsi verbose diatas ?? Fungsi dari opsi verbose diatas ini adalah untuk menampilkan class-class apa saja yang akan di load oleh Java Virtual Machine pada waktu kita menjalankan aplikasi / kode java kita Nah untuk membuktikan-nya, sekarang mari kita coba tulis sebuah kode sederhana dengan nama Hello.java kemudian isi dengan kode seperti dibawah ini :

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public class Hello {
	public static void main(String[] args) {
		System.out.println("Hello World");
	}
}

Simpan perubahan yang telah kita lakukan pada file Hello.java kemudian lakukan proses kompilasi dengan mengetikkan perintah javac Hello.java. Dan jika tidak terdapat error pada waktu proses kompilasi, kita akan mendapatkan sebuah file Hello.class yang siap dijalankan dengan menggunakan perintah java. Nah sekarang mari kita lihat, apasih efek dari opsi verbose diatas. Untuk membuktikan-nya sekarang mari kita coba menjalankan file Hello.class dengan perintah java -verbose Hello dan hasilnya adalah kurang lebih seperti dibawah ini :

martinus@martinusadyh:~/Latihan/Java$ java -verbose Hello
[Opened /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Object from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.Serializable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Comparable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.CharSequence from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.String from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.GenericDeclaration from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.Type from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.AnnotatedElement from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Class from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Cloneable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ClassLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.System from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Throwable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Error from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ThreadDeath from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Exception from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.RuntimeException from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.ProtectionDomain from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.AccessControlContext from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ClassNotFoundException from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.LinkageError from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.NoClassDefFoundError from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ClassCastException from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ArrayStoreException from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.VirtualMachineError from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.OutOfMemoryError from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StackOverflowError from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.IllegalMonitorStateException from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.Reference from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.SoftReference from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.WeakReference from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.FinalReference from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.PhantomReference from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.Finalizer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Runnable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Thread from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Thread$UncaughtExceptionHandler from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ThreadGroup from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Map from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Dictionary from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Hashtable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Properties from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.AccessibleObject from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.Member from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.Field from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.Method from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.Constructor from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.MagicAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.MethodAccessor from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.MethodAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.ConstructorAccessor from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.ConstructorAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.DelegatingClassLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.ConstantPool from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.FieldAccessor from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.FieldAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.UnsafeFieldAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.UnsafeStaticFieldAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Iterable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Collection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.List from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.RandomAccess from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.AbstractCollection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.AbstractList from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Vector from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Appendable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.AbstractStringBuilder from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StringBuffer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StackTraceElement from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.Buffer from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.AtomicLong from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.AtomicLongCSImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Boolean from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Character from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Number from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Float from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Double from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Byte from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Short from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Integer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Long from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.NullPointerException from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ArithmeticException from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.ObjectStreamField from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Comparator from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.String$CaseInsensitiveComparator from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.Guard from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.Permission from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.BasicPermission from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.RuntimePermission from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.AbstractMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.SoftCache from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.ReferenceQueue from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.ReferenceQueue$Null from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.ReferenceQueue$Lock from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.HashMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Map$Entry from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.HashMap$Entry from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.AccessController from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.ReflectPermission from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.PrivilegedAction from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.ReflectionFactory$GetReflectionFactoryAction from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Stack from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.ReflectionFactory from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.Reference$Lock from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.Reference$ReferenceHandler from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ref.Finalizer$FinalizerThread from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Enumeration from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Hashtable$EmptyEnumerator from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Iterator from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Hashtable$EmptyIterator from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Hashtable$Entry from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.Charset from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.spi.CharsetProvider from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.FastCharsetProvider from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.StandardCharsets from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.util.PreHashedMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.StandardCharsets$Aliases from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.StandardCharsets$Classes from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.StandardCharsets$Cache from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ThreadLocal from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.atomic.AtomicInteger from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Unsafe from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.IncompatibleClassChangeError from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.NoSuchMethodError from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.Reflection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Collections from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Set from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.AbstractSet from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Collections$EmptySet from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Collections$EmptyList from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Collections$EmptyMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Collections$ReverseComparator from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Collections$SynchronizedMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Class$3 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.Modifier from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.LangReflectAccess from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.ReflectAccess from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StringValue from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Arrays from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Math from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StringBuilder from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.HistoricallyNamedCharset from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.ISO_8859_1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Class$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.ReflectionFactory$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.NativeConstructorAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.DelegatingConstructorAccessorImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.VM from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StringCoding from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ThreadLocal$ThreadLocalMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ThreadLocal$ThreadLocalMap$Entry from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StringCoding$StringDecoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.CharsetDecoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.ISO_8859_1$Decoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.CodingErrorAction from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.ByteBuffer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.HeapByteBuffer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.Bits from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.ByteOrder from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Readable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.CharBuffer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.HeapCharBuffer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.CoderResult from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.CoderResult$Cache from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.CoderResult$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.CoderResult$2 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Version from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.JavaLangAccess from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.System$2 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.SharedSecrets from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Runtime from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.File from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FileSystem from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.UnixFileSystem from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.ExpiringCache from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.LinkedHashMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.ExpiringCache$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.LinkedHashMap$Entry from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.security.action.GetPropertyAction from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.jkernel.DownloadManager from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.jkernel.DownloadManager$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.jkernel.DownloadManager$2 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.StringCoding$StringEncoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.nio.charset.CharsetEncoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.ISO_8859_1$Encoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.Surrogate$Parser from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.Surrogate from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ClassLoader$3 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.ExpiringCache$Entry from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.ClassLoader$NativeLibrary from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.Closeable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.InputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FileInputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FileDescriptor from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.Flushable from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.OutputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FileOutputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FilterInputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.BufferedInputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.atomic.AtomicReferenceFieldUpdater from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.atomic.AtomicReferenceFieldUpdater$AtomicReferenceFieldUpdaterImpl from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.reflect.misc.ReflectUtil from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FilterOutputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.PrintStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.BufferedOutputStream from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.Writer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.OutputStreamWriter from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.StreamEncoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.BufferedWriter from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Terminator from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.SignalHandler from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Terminator$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Signal from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.NativeSignalHandler from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.OSEnvironment from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Compiler from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.Compiler$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Launcher from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.URLStreamHandlerFactory from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Launcher$Factory from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.SecureClassLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.URLClassLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Launcher$ExtClassLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.security.util.Debug from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.JavaNetAccess from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.URLClassLoader$7 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.StringTokenizer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.PrivilegedExceptionAction from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Launcher$ExtClassLoader$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.MetaIndex from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.Reader from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.BufferedReader from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.InputStreamReader from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FileReader from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.cs.StreamDecoder from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.ArrayList from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.reflect.Array from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.net.www.ParseUtil from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.BitSet from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.ObjectStreamClass from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.URL from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.Locale from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.ConcurrentMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.ConcurrentHashMap from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.locks.Lock from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.locks.ReentrantLock from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.ConcurrentHashMap$Segment from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.locks.AbstractOwnableSynchronizer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.locks.AbstractQueuedSynchronizer from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.locks.ReentrantLock$Sync from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.locks.ReentrantLock$NonfairSync from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.locks.AbstractQueuedSynchronizer$Node from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.concurrent.ConcurrentHashMap$HashEntry from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.CharacterDataLatin1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.Parts from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.URLStreamHandler from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.net.www.protocol.file.Handler from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.util.HashSet from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.URLClassPath from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.net.www.protocol.jar.Handler from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Launcher$AppClassLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Launcher$AppClassLoader$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.lang.SystemClassLoaderAction from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.URLClassLoader$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.URLClassPath$3 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.URLClassPath$Loader from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.URLClassPath$JarLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.PrivilegedActionException from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.URLClassPath$FileLoader from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.Resource from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.misc.URLClassPath$FileLoader$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.nio.ByteBuffered from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.CodeSource from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.PermissionCollection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.Permissions from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.URLConnection from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.net.www.URLConnection from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.net.www.protocol.file.FileURLConnection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.ContentHandler from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.net.UnknownContentHandler from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.net.www.MessageHeader from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FilePermission from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FilePermission$1 from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.Policy from /usr/lib/java/jre/lib/rt.jar]
[Loaded sun.security.provider.PolicyFile from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.Policy$UnsupportedEmptyCollection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.io.FilePermissionCollection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.AllPermission from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.UnresolvedPermission from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.BasicPermissionCollection from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.Principal from /usr/lib/java/jre/lib/rt.jar]
[Loaded java.security.cert.Certificate from /usr/lib/java/jre/lib/rt.jar]
[Loaded Hello from file:/home/martinus/Latihan/Java/]
Hello World
martinus@martinusadyh:~/Latihan/Java$

Hanya untuk menjalankan Hellow World saja, class-class yang diload oleh Java Virtual Machine ternyata banyak juga ya. Nah sekarang bagaimana jika ada kita tambah dengan opsi -classpath ? Tentu-nya hasil-nya lebih banyak dari output diatas

Teman-teman ingin mengcopy artikel pada blog ini ? Jangan kuatir, teman-teman bebas koq mengcopy seluruh atau sebagian dari isi artikel yang di posting pada blog ini dengan tujuan dan maksud apapun. Tapi bantu saya ya teman-teman dengan memberikan back link ke blog ini dengan mencantumkan alamat http://martinusadyh.web.id/ pada setiap artikel yang teman-teman copy atau publish di blog teman-teman :)

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