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Explain try and catch exception in java?
Why use exceptions instead of return values? 1. Forces error checking 2. Cleans up your code through separating the normal case from the exceptional case. (The code isn't littered along with a lot of if-else blocks checking return values.) 3. Low overhead for non-exceptional case
Traditional programming languages set flags or return bad values such as -1 to denotes problems. Programmers frequent don't check these values.
Java throws Exception objects to denotes a problem. These cannot be ignored.try-catchtry-catch public class HelloThere {
public static void main(String[] args) { try { System.out.println("Hello " + args[0]); } catch (ArrayIndexOutOfBoundsException e) { System.out.println("Hello Whoever you are."); }
}
Relation between Stack and Heap Stack and heap are two significant memory areas. Primitives are created on the stack whereas objects are created on heap. This will be further c
The Java programming language is object-oriented and includes automatic garbage collection. Garbage collection is the process of reclaiming memory taken up by unreferenced objects.
Does the java applet using swing components, JAVA Programming on this contain all the source codes for download?
For what purposes FTP is used in networks? FTP is known as file transfer protocol it is basically used to download or upload files / data to a remote computer.
assignment on jsp
Where the local varible declared? Declaring variables within a function, makes them local .They are available only within that function and hold no meaning outside of it
explain jumps in loops and explain labelled loops
Explain try and catch exception in java? Why use exceptions instead of return values? 1. Forces error checking 2. Cleans up your code through separating the normal case from
Describe Interfaces in java langauge? Interfaces are the further level of abstraction. An interface is like a class along with nothing but abstract methods and final, static fi
what is an Interface?
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