Why it is not working "CmdLineArgsApp.class"
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Why it is not working "CmdLineArgsApp.class"
by Diya Sun May 29, 2011 4:02 pm
AOA Sir,
Here is the message when run the "java CmdLineArgsApp"
D:\java>java CmdLineArgsApp
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
at CmdLineArgsApp.main(CmdLineArgsApp.java:7)
What is wrong with it?
Here is the message when run the "java CmdLineArgsApp"
D:\java>java CmdLineArgsApp
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
at CmdLineArgsApp.main(CmdLineArgsApp.java:7)
What is wrong with it?
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Re: Why it is not working "CmdLineArgsApp.class"
by Vuhelper Sun May 29, 2011 4:03 pm
When while running CmdLineArgsApp you do not provide any command line arguments you get this exception.
Because in the code args[0] and args[1] are being used , if we do not provide any argument at command line, args[0] and args[1] do not have any value and exception is generated.
You can place a check to avoid this exception, you can check for number of element (i.e. check the value of args.length ) in args array if they are greater then 0 then proceed futher.
Because in the code args[0] and args[1] are being used , if we do not provide any argument at command line, args[0] and args[1] do not have any value and exception is generated.
You can place a check to avoid this exception, you can check for number of element (i.e. check the value of args.length ) in args array if they are greater then 0 then proceed futher.
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Join date : 2011-05-29
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