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What is user defined exception
pdommara
- Sep 6th, 2007
You can create your own exception by extending the java.io.Exception.Throw the that exception using throw like this :public void method() throws userDefinedException {try {}catch(exception e) { throw new userDefunedExcpetion();}
yogeshpanda
- Sep 22nd, 2005
Exceptions that the user want to be invoked when a particular criteria is not satisfied by the user.Eg. If the programmer want the user to give username necessarily,Then he can make an exception that ...
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What are the interfaces you used in Beans
pdommara
- Sep 5th, 2007
We can implement?java.io.Serializable?interface for the bean, to get? the Bean Persistence.Bean Persistence means stroing?bean?properties,?values and state of the bean at permenent?storage?disk space.
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What are the steps involved to create a bean
pdommara
- Sep 5th, 2007
Public class AAA {private String str;public void setStr(String mm) { this.str=mm;}public String get Str() {return this.str;}}This is basic lavel of creating java bean.ThanksPraveen.
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How to sort an integer array without using array sort ()?
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Can we give array size is 0?
Yes
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What is the difference between JRE and JVM?
g4java
- Aug 17th, 2007
We can put it like JVM intigral part of JREJRE supports other applications also like browsers.
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What is the difference between servlet init( ) and servlet destroy( ) methods?
g4java
- Aug 17th, 2007
Init() is the beginning of the servlets life cycle and destroy is the end of it.
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If we declare main method as private instead of public, Will it execute or not.
kiran
- Aug 16th, 2007
There is no exceptionIn Java the compiler compiles the programe but whenever we execute that we wont get any output because of?access specifier PRIVATE. The main method?does not?not call the member function (methods)
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Class A { void add(); } class B { void add();}class Ex {public static void main(string args[]) {A a=new B();B b=new A();a.add();b.add();}What is the result;
agsuvidha
- Aug 14th, 2007
There is an error in this program. as if u see clearly, class A is an abstract class and abstract class can not be instantiated.
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What are the different types of Layouts
agsuvidha
- Aug 14th, 2007
We have various types of layouts in the java.awt package. some are 1) flow layout 2) border layout 3) grid layout 4) card layout 5) gridbag layout
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What is a native method
A native method is a method that is implemented in a language other than Java.
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What are order of precedence and associativity, and how are they used
Order of precedence determines the order in which operators are evaluated inexpressions. Associatity determines whether an expression is evaluated left-to-right orright-to-left
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Can we declare final variables in side a method.
Mahesh
- Aug 2nd, 2006
Yes, it is possible to declare a final variable inside a method but it is not recommended.
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What is class variables and instance variables?
sujatham
- Aug 11th, 2007
Class variable:? 1. Also called as static variable.2. Variable declared?in the class with static modifier.3. These variables are belong to the class.Instance variable:? 1. Variables declared in the class?without?the static modifier.2. These variables are belongs to the objects.
Tafazzul hasan
- Feb 21st, 2007
Class variables belongs to a Classwhere as an instance variable belongs to an Object. A class variable is shared by all the objects of the class. where as every object contain their own instance variable.
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Name the eight primitive Java type.
mytramesh
- Oct 4th, 2006
We have two type of data types in java those are 1.Primitive data types 2. Referenced Data types or Advanced data types.Primitive datatypes are : these store only singe value.boolean,short,int,char,float,double,byte,longAdvanced Datatypes are :these store group of valuesString,Array,object
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String b=a+"how r u";
String c=b+"buddy";
How many objects are there in the above code?">String a="hello";String b=a+"how r u";String c=b+"buddy";How many objects are there in the above code?
sadikmca2004
- Jul 17th, 2007
three Different object'su can go through the following progpublic class Demo { public static void main(String ar...
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There is a class in which it has 3 variables: static int ii; transient int j; int k; if we create an object for the above class which is serializable then what are the variables available in the object?
Java Interview Questions
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