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Why identifiers in java does not start with digits?
uafshahid
- Apr 30th, 2006
Considerint a = 10;int b = 2*a;now consider a variable having the name of 2*a then what will happenint 2*a = 89;compiler will be confused and will not consider it as identifierbut consider it as multi...
ramit
- Apr 21st, 2006
simple data
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What does final parameters mean in a method.does a innerclass only access final parameters from the parameter list if its defined inside a method.Code:type methodA(final int parm1,int parm2){class inner{// -- is onlt parm1 accessible or parm2 is also accessible}}
I did not check it in a JVM but even i can decide which is accessible. I wanna know the cocept of final parameters.
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What is an example of polymorphism?
A) Inner classB) Anonymous classesC) Method overloadingD) Method overriding
Liramu
- Apr 19th, 2006
D) Method Overriding is an absolute example of Polymorphism...u can use the same name for several diff things and the compiler automatically figure out which version has to be invoked , perhaps there ...
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WEB-INF->classes " folder
& map in web.XML file , & run it does not run . When I check,
in Tomcat's manager.HTML file , The running option for servlets-examples is turned false, It happens many times.
What shall I do to recover?? Please answer me????
">I face problem while doing Servlet program. I successfully get .class file of Servlet's .java file, When I copy(deploy) the .class file in "servlets-example->WEB-INF->classes " folder& map in web.XML file , & run it does not run . When I check,in Tomcat's manager.HTML file , The running option for servlets-examples is turned false, It happens many times.What shall I do to recover?? Please answer me????
nishant_jaina
- Apr 26th, 2006
hello abdulu said that u deployed that .class file in the "servlets-example->WEB-INF->classes" folder and u map it in web.XML file, well it doesnt matter that whether u map it in web.X...
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How we can find the total number of processors available in system?
Deepthik
- Apr 26th, 2006
Number of Processors can be known by using java.lang.Runtime.getRuntime().availableProcessors()
mail2kondeti
- Apr 19th, 2006
You find by using java.lang.Runtime.availableProcessors()Lets give a try.TxSrikanth Kondeti
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System.out.println(Float.parseFloat(x));
it gives infinity.
so, how to catch it?
">How to check infinity value ? i took very large number as string when i cast to float it gives infinity value. how to check at runtime or how to catch it?ex : String x = "111111111111111111111111111112222222222222222222222222222112222";System.out.println(Float.parseFloat(x));it gives infinity.so, how to catch it?
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________ text component is best suited for controlling the format of a single line of user-entered text?
Skill/Topic: AWT & AppletsA) JformattedTextField
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What is the difference between Grid and GridbagLayout
RojaJose
- Apr 20th, 2006
Grid Layout arrainges the buttos in same size what ever the button has label,for ex: if first button have Hai,it arraingesd all the buttons which is size of Hai button have.But in GridBack Layout it arrainges according to lable size .
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What is serialization used for
Radhey Krishna Yadav
- Apr 18th, 2006
Serialization is a techniques which maintain the state of the object.In java automatically call the destructer and destroy the object by the gc()method.We want to my object state can be maintain so we...
chandanareddy
- Feb 1st, 2006
Serialization is a java technology for creating persistent object.A persistent object is the one whose state can survive beyond the application boundry in which object was created.Representing an object state in series of bytes is called Serialization
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What is the difference between transatile,volatile modifier?
masif
- Apr 17th, 2006
Transient FieldObjects can be stored to persist using serialization. Serialization converts object into an output format that can be used for storing the object. When de-serialized object can be retri...
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//Note:before installing Tomcat the code gave no error:Pls give me suggestion">
I get the following error while running a servlet that connects with database.Required:java.sql.Connectionfound:ConnectionThe line is Connection con = DriverManager.getConnection("here the oracle datasource ","user",password");//Note:before installing Tomcat the code gave no error:Pls give me suggestion
kiranbanala
- Apr 16th, 2006
Probabilly classes12.jar file is not there in case of oracle in tomcat shared / lib folderin case of some other database copy its jar filesfor mysql copy mysql-connector-java-3.1.8-bin
Preeti Yadav
- Apr 5th, 2006
wht do u mean by: before installing Tomcat, the code gave no error, how were u executing the code prior to tomcat?The common steps are listed for cross-confirmation.Load the driver thru: Class.forName...
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