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What is the output of below syntax?
java{
cath(Exception e)
{System.out.println("A");
}
cath(ClassNotFoundException e1)
{System.out.println("b");
}
cath(InvalidException e2)
{System.out.println("c");
}
finally()
{
System.out.println("x");
}
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What will be the result of compiling and executing the code listed below?
java
public class Finder {
public static void main(String[] args){
System.out.println(X.Y.Z);
}}
class X{
static class Y{ static String Z ="Apple"; }
static W Y = new W();
}
class W{ String Z = "Orange";}
a) Apple
b) Orange
c) Compile time Error
d) Runtime Exception is thrown -
What is the output of the following program?
class Test{
public static void main(String [] args){
int a=8;
a=--a+a--+a++;
System.out.println(a );
}} -
Java supports multiple inheritance
Skill/Topic: InheritanceA) TrueB) False
nverma
- Feb 17th, 2011
False, Java doesn't support multiple inheritence..C++ supports multiple inheritence
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Can we make construtor STATIC?
tafazzul hasan
- Feb 20th, 2007
We can not use STATIC with a Constructor. We can use only Public,Private,Protected and Default modifiers with a Constructor.
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Does a class inherit the constructors of its superclass
A class does not inherit constructors from any of its superclasses.
manjunathboya
- Apr 4th, 2008
yes, the super class inherit the construtor. we can call the super class by using the SUPER keyword.
shaik subhani
- Feb 14th, 2008
A super default constructor is automatically available to the subclass , when the subclass object is created. but if you want to access super class parameterized constructors , we must use super keyword.
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There are _____ types of Comments in Java
A) One B) Two C) ThreeD) Four Explanation: There are 3 types of comments namely Single-line, Multi-line and Documentation comment
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What is the data type for the parameter of the sleep() method?
A) doubleB) intC) longD) float
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WHAT IS THE DIFFERENCE BETWEEN MULTI-THREADING AND MULTI-PROCESSING?
kazi_latiful
- May 23rd, 2011
Multi processing is term that multi program can execute with multi processor that can share the same physical memory space.on the other hand multi-threading is that different program can execute on different time on simultaneously that can share same memory address space.
Vara Rama Krishna Chadaram
- Aug 7th, 2006
MULTI-THREADING :
It refers to the ability of the operating system to execute multiple parts of a process simultaneousliy.
MULTI-PROCESSING:
It refers to the ability of the operating system to execute multiple programs simultameously .The process time is shared between the programs.
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What are the functions of the dot(.) operator? (Select multiple)
A) It enables you to access instance variables of any objects within a classB) It enables you to store values in instance variables of an objectC) It is used to call object methodsD) It is to create a new object
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____________ is the mechanism that binds together code and the data it manipulates, and keeps both safe from outside interference and misuse
A) EncapsulationB) ClassC) InheritenceD) Polymorphism
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What is the difference between throw and throws clause, explain in programatically
Read Best Answer
Editorial / Best Answer
Answered by: sri
- Dec 24th, 2005
throw is used to throw an exception manually, where as throws is used in the case of checked exceptions, to reintimate the compiler that we have handled the exception. so throws is to be used at the time of defining a method and also at the time of calling that function, which rises an checked exception.
Prog. to explain diff. b/w throw and throw:
class MyException extends Exception //to create our own exception
{
public String toString() //overriding the method toString() to print the desired msg.
{
return "Can not divide a no. with one: "+"MyException";
}
public static void main(String args[]) throws MyException //use of throws
{
int a=Integer.parseInt(args[0]);
int b=Integer.parseInt(args[1]);
if(b==1)
throw new MyException(); // rises an MyException, if we try to divide a no. with 1
else
System.out.println((float)a/b);
}
}if we want to rise our own exception, we have to use either throws or to handle the exception by try-catch. if not, it gives the compile time error.
and throw is to rise the exception manually, In the above prog. I rised an exception when you try to divide a no with 1.(own Exception)
----sri
muthud
- Nov 22nd, 2011
Exception handling is done by two ways . One is handled by JVM and another is handled by User. JVM does Exception handling by using principle of Exception can be Caught or Declared . Caught is nothin...
micklesharma
- Jul 6th, 2010
Throws is a userdefined exception handling whereas throw is system defined....
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What is the difference between exception and error
Answered by Scott on 2005-05-12 09:50:36: An Exception can be caught and recovered: ArrayIndexOutOfBoundsException means you tried to access a position of an Array that does not exist - no big deal. An Error is unrecoverable: OutOfMemoryError means that the JVM has no more memory to contin
utkarsh prashar
- Aug 16th, 2013
Exception are abnormal conditions and errors are the mistakes like syntax error or logical error.
sravani
- Jun 3rd, 2013
Exception is nothing but error but some difference whenever exception will raise program can execute continuously where as error program will not execute
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An _________ is a special kind of Java program that is designed to be transmitted over the Internet
A) ViewletB) AppletC) ServletD) Object
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Java support RMI. What does this RMI stands for?
A) Random Memory InterfaceB) Remote Method InvocationC) Random Method InvocationD) Ramote Memory Interface
karthika01
- Nov 18th, 2011
RMI is basically stands for Remote Method Invocation. RMI is a the mainly use for set the APIs that allows to build distributed applications. RMI uses interfaces to define remote objects to turn local method invocations into remote method invocations.
Himanshu vij
- Sep 10th, 2011
Answer is B: Remote Method Invocation
Java Interview Questions
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