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Core Java Interview Questions Page2       Q 1. When should I use the abstract class rather than an interface ? Ans :  A Java interface is an abstract data type like 

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Core Java Interview Questions Page1       Q 1 : How should I create an immutable class ? Ans... be assigned in the constructor. As per the specification declared in java document 

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Core Java Interview Questions Page3       Q 1. How can I get the full path of Explorer.exe ? Ans : Generally Java sandbox does not allow to obtain this reference so 

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with explanation.. i need purpose not the definition. and when to use interface.... For more information, visit the following link: http://www.roseindia.net/java/master-java/interface.shtml Thanks 

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the command line as: java MyProg I like tests what would be the value of args[ 1 ] inside the main( ) method? a) MyProg b) "I" c) "like" d) 3 e) 4 f) null until a value is assigned 3. Which of the following are Java keywords 

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Java constructor overloading example  I need Java constructor overloading exampleThanks!  Ans1 : You can not override a constructor... and each class can use it ( since they need to be initialize only once 

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Interview question   Hi Friends, Give me details abt synchronization in interview point of view. I mean ow to explain short and neat. Thanks 

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core java question  I Have been asked the question in interview why we use constructors????? or what is the need of constructors?? or what is the utility of constructors????  to intialize the instance variabe we 

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Interview question   Hi Friends, I am new to java, can u tell me what is class ,object and instance with example. For example : class raja , raja r = new raja(); ,here raja is class and r is instance 

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Servlet Problem  I need to get an alert message when the submit button is clicked again while processing... how is it possible...?? Thanks in advance 

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J2EE EAR Structure   What is the structure for J2EE EAR 

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Java a complete reference  Need a Complete reference on Java.  www.geekinterview.com/question_details/17043 

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Why Controller in j2ee  Hi, Why controller(servlet) used in j2ee web application.what happens if no controller. Thank u in advance  Hi Friend, In MVC framework,the role of controller is very important.It centralizes 

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java  can you write a java pro with out using static infront of main... be accessed outside the class / package * static: You need not have an instance of the class to access the method * void: Your application need 

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java  How java can be used to write router protocols? like snmp ? cna i have an example one 

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Pointers  Why Pointer are not used in JAVA?  There is no need to store the address of the another variable in java So that pointers are not used in java 

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JAVA  how to merge the sorted arrays i want sourse code?  ...+arr2.length]; for(int i = 0; i < arr3.length; i++) { if(i < arr1.length) arr3[i] = arr1[i]; else arr3[i] = arr2[i-arr1.length]; } Arrays.sort(arr3 

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