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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."); }
}
What is difference between time slicing and preemptive scheduling? Differences between preemptive and time scheduling are: In case of Preemptive scheduling the highest prior
What will be the default values of all the elements of an array explained as an instance variable? If the array is an array of primitive types, then all the elements of the arr
how to write a program to assign value of variable age and print if person is major.
Explain garbage collection. Java uses garbage collection to free the memory. By cleaning those objects which is no longer reference by any of the program. Step involve in clean
Payroll Calculator for Both Hourly and Commission Employees In assignment 13, we will create a payroll calculator that calculates gross pay , taxes , and net pay fo
Type casting defines treating a variable of one type as though it is another type. When up casting primitives as given below from left to right, automatic conversion happens. Bu
Having one instance overall the application.eg.: Loggers
Write HTML and JavaScript code for the needs shown in the diagram below? When ConvertoUpperCase button is pressed then the entered text is converted to upper case and result is
how to create a face with nose using applet
EJBs are distributed elements, which need the RMI framework for object distribution. An EJB application server gives more services like object pooling, transaction management, data
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