Give me some suggestions about enterprise websites

Recent very distressed and hope everybody can give me some advice sincerely. When you look at these websites at first sight，Can you give the first feeling？Theses websites involves in different industries，such as hardware industry,chemical industry, rubber industry, construction industry and so on!Each websites I will give you some keywords.The keywords in hardware industry are marine hardware, trailer parts, wrouht iron, scaffold, sand casting, hand tools and so on!Chemical industry:swimming pool chemical, ammonium nitrate, sea sault.Rubber industry:rubber seal.Consruction industry:granite countertops, paint tools,  storage bin.If you have any Suggestions, please don't hesitate to give me some Suggestions.Thanks!

The decision of whether to use CLDC or CDC is made for you by the device you are programming for. If you want to write an application for a particular smartphone then you have to find out what configuration it is running and as far as I know all smartphones (no matter how powerful) will be running CLDC. The CDC is aimed at things like set-top boxes for televisions and other such devices that run from mains power for example.
Within CLDC there are 2 versions, 1.0 and 1.1 and again the choice of which one to use comes from the device you are aiming for. The same for MIDP, which has version 1.0 and 2.0. As an example I am developing an application for a Nokia N95 and I know from the phone documentation that it is running CLDC 1.1 and MIDP 2.0.
I've never looked at CDC to be able to tell you the differences but if you are starting development of a mobile phone application then you will want to look at CLDC/MIDP and you should never have to worry about getting it to work on a CDC emulator because you will never need to do that.

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    Hi
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    Message was edited by:
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    Message was edited by:
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    Message was edited by:
    Mellon
    Message was edited by:
    Mellon
    null

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  • Would you give me some information about objective-c multi thread please

    hello,
    I am studing objective-c multi thread, but have not enough information. would you give me some, please? Thanks very much!

    Hello
    You rang at the wrong door.
    This forum is dedicated to AppleWorks, not to objective-c
    Yvan KOENIG (from FRANCE mercredi 9 août 2006 07:38:25)

  • Who can give me a suggestion about java crash with Internal Error ID?

    I running my server performance test, but after 7 hours, the jvm crashed and give a java internal error ID with "*53484152454432554E54494D450E43505001A8*",
    and I can not query any valuable information from Google by this internal Error ID. Who can give me a light?
    I have run the performance test on the other machine with the same service logic, the other environment not crash, It's very strange!
    h5. some content of The hs_err_xxx.log file:
    # An unexpected error has been detected by HotSpot Virtual Machine:
    # Internal Error (53484152454432554E54494D450E43505001A8), pid=16908, tid=1060293520
    # Java VM: Java HotSpot(TM) Server VM (1.5.0_19-b02 mixed mode)
    --------------- T H R E A D ---------------
    Current thread (0x425782e8): JavaThread "11d1def534ea1be0:656f6049:124caa54ac8:49c0,EventTypeID[com.telware.protocol.cid.eve
    nt.CIDContinueEvent#telware#1.0], #14" [_thread_in_Java, id=17068]
    Stack: [0x3f2ac000,0x3f32d000), sp=0x3f32b2a0, free space=508k
    Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
    V [libjvm.so+0x516863]
    V [libjvm.so+0x1ca6cc]
    V [libjvm.so+0x4a3c5f]
    V [libjvm.so+0x43ceb6]
    V [libjvm.so+0x43a0c4]
    Other Threads:
    0x08e0d850 VMThread [id=16914]
    0x08e20e20 WatcherThread [id=16923]
    VM state:not at safepoint (normal execution)
    VM Mutex/Monitor currently owned by a thread: None
    h6. Heap
    par new generation total 98304K, used 36214K [0x49360000, 0x51360000, 0x51360000)
    eden space 65536K, 29% used [0x49360000, 0x4a667c10, 0x4d360000)
    from space 32768K, 51% used [0x4d360000, 0x4e3b5e58, 0x4f360000)
    to space 32768K, 0% used [0x4f360000, 0x4f360000, 0x51360000)
    concurrent mark-sweep generation total 1507328K, used 974545K [0x51360000, 0xad360000, 0xad360000)
    concurrent-mark-sweep perm gen total 40152K, used 24021K [0xad360000, 0xafa96000, 0xb1360000)
    h6. VM Arguments:
    jvm_args: -Dfile.encoding=utf-8 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationConcurrentTime
    -XX:+PrintGCApplicationStoppedTime -Xloggc:/home/sepcs/sep/oper/gc.log -Xms1600m -Xmx1600m -Xmn128m -XX:SurvivorRatio=2 -XX:+
    UseFastAccessorMethods -XX:-UseFastEmptyMethods -XX:+UseFastJNIAccessors -XX:ParallelGCThreads=2 -XX:+UseConcMarkSweepGC -XX:
    UseParNewGC -XX:CMSFullGCsBeforeCompaction=1 -XX:GCTimeRatio=19 -Xnoclassgc -XX:DisableExplicitGC -XX:CMSInitiatingOccupanc
    yFraction=70 -XX:+UseCMSCompactAtFullCollection -XX:+CMSParallelRemarkEnabled -Dsep.home.dir=/home/sepcs/sep
    java_command: com.telware.sep.system.SysAdmin -r -gc
    Launcher Type: SUN_STANDARD
    h6. Environment Variables:
    JAVA_HOME=/usr/jdk/jdk1.5.0_19
    PATH=/home/sepcs/sep/bin::/usr/jdk/jdk1.5.0_19/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin
    LD_LIBRARY_PATH=/usr/jdk/jdk1.5.0_19/jre/lib/i386/server:/usr/jdk/jdk1.5.0_19/jre/lib/i386:/usr/jdk/jdk1.5.0_19/jre/../lib/i3
    86
    SHELL=/bin/csh
    DISPLAY=localhost:10.0
    HOSTTYPE=i386-linux
    OSTYPE=linux
    MACHTYPE=i386
    --------------- S Y S T E M ---------------
    OS:Red Hat Enterprise Linux Server release 5.1 (Tikanga)
    uname:Linux 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:02 EDT 2007 i686
    libc:glibc 2.5 NPTL 2.5
    rlimit: STACK 10240k, CORE infinity, NPROC 31726, NOFILE 1024, AS infinity
    load average:2.05 2.35 2.23
    CPU:total 2 (cores per cpu 2, threads per core 1) family 15 model 6 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3
    Memory: 4k page, physical 2009524k(54132k free), swap 1049k(1048k free)
    vm_info: Java HotSpot(TM) Server VM (1.5.0_19-b02) for linux-x86, built on May 4 2009 01:43:34 by java_re with gcc 3.2.1-7a
    (J2SE release)
    time: Sat Nov 7 02:44:28 2009

    Thank you very much first.
    I have noted that the link [t-739313] but I can not found any valuable info for my exception :(
    Yesterday night this crash has been rised again after my server running 1hours, I have analysis the core file, it's stack like this:
    {color:#008080}(gdb) bt
    #0 0xb7f4e402 in __kernel_vsyscall ()
    #1 0x00488c10 in raise () from /lib/libc.so.6
    #2 0x0048a521 in abort () from /lib/libc.so.6
    #3 0xb7990f75 in os::abort () from /usr/jdk/jdk1.5.0_19/jre/lib/i386/server/libjvm.so
    #4 0xb7a6f914 in VMError::report_and_die () from /usr/jdk/jdk1.5.0_19/jre/lib/i386/server/libjvm.so
    #5 0xb77236cc in report_fatal () from /usr/jdk/jdk1.5.0_19/jre/lib/i386/server/libjvm.so
    #6 0xb79fcc5f in SharedRuntime::continuation_for_implicit_exception ()
    from /usr/jdk/jdk1.5.0_19/jre/lib/i386/server/libjvm.so
    #7 0xb7995eb6 in JVM_handle_linux_signal () from /usr/jdk/jdk1.5.0_19/jre/lib/i386/server/libjvm.so
    #8 0xb79930c4 in signalHandler () from /usr/jdk/jdk1.5.0_19/jre/lib/i386/server/libjvm.so
    #9 <signal handler called>
    #10 0x0960527c in ?? ()
    #11 0x429f2160 in ?? ()
    #12 0x429f2158 in ?? ()
    #13 0x4cb72e48 in ?? ()
    #14 0x4cb72f28 in ?? ()
    #15 0x4cb72fe8 in ?? ()
    #16 0x00000000 in ?? (){color}
    I have print the stack from the core file, I found the crashed thread's state which indicted by hs_err_xxx.log is IN_JAVA and no stack information.
    {color:#008080}Thread 12536: (state = IN_JAVA){color}
    (no stack info.)
    {color:#008080}{color:#000000}And from the gc.log, I found that the crash occured in the CMS phase, the last gc log is :
    {color}5814.574: [GC [1 {color:#0000ff}CMS-initial-mark{color}: 829142K(1507328K)] 839697K(1622016K), 0.0281480 secs]
    Total time for which application threads were stopped: 0.0284280 seconds
    5814.602: [{color:#0000ff}CMS-concurrent-mark-start{color}]
    Application time: 1.7093670 seconds
    5816.312: [GC 5816.312: [ParNew: 108858K->8866K(114688K), 0.1133760 secs] 938001K->842222K(1622016K), 0.1135920 secs]
    Total time for which application threads were stopped: 0.1141250 seconds
    Application time: 1.4597160 seconds
    5817.886: [GC 5817.886: [ParNew: 107170K->8372K(114688K), 0.0900130 secs] 940526K->844407K(1622016K), 0.0902690 secs]
    Total time for which application threads were stopped: 0.0907340 seconds
    Application time: 1.4513060 seconds
    5819.428: [GC 5819.428: [ParNew: 106676K->8189K(114688K), 0.0871610 secs] 942711K->846695K(1622016K), 0.0873750 secs]
    Total time for which application threads were stopped: 0.0878680 seconds
    {color:#000000}All above is my found, but I am a newbie in JVM crash, so anybody can help me ?
    and I am very interesting in the Internal Error ID ({color}{color}{color:#ff0000}*53484152454432554E54494D450E43505001A8*{color}{color:#008080}{color:#000000}), I think this ID hide a lot of valuable information for SUN JDK developer, who can interpret it? Thanks very much!
    {color}{color}

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