Ping with Runtime

Posted on 2005-04-20
Medium Priority
Last Modified: 2006-11-18
Why does this work Runtime.exec("ping www.yahoo.com"), but Runtime.exec("ping -n 1 www.yahoo.com") throws the attached exception?  If -n is a valid argument for ping on a windows platform?  I did verify that ping -n works from within DOS.

java.io.IOException: CreateProcess: "ping -n www.yahoo.com" error=2
        at java.lang.ProcessImpl.create(Native Method)
        at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
        at java.lang.ProcessImpl.start(ProcessImpl.java:30)
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
        at java.lang.Runtime.exec(Runtime.java:591)
        at java.lang.Runtime.exec(Runtime.java:464)
        at PingTest.PingTest(PingTest.java:19)
        at ThreadNetworkScan.ipCheck(ThreadNetworkScan.java:262)
        at ThreadNetworkScan.run(ThreadNetworkScan.java:24)
        at java.lang.Thread.run(Thread.java:595)

Question by:jhughes4
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CEHJ earned 500 total points
ID: 13827628

Runtime.exec(new String[] { "ping", "-n", "1", "www.yahoo.com" });
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Expert Comment

ID: 13828001

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