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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."); }
}
I need to draw cars and trucks and background with road and a house with sky. I have to use Vehicle class as a parent class. To draw pictures, i should draw fun things coming up
write a program in java which enters name,roll #,and shows the sum of students english and maths marks?
Why is an Interface be able to extend more than one Interface but a Class can't extend more than one Class? Basically Java doesn't permit multiple inheritances, so a Class is r
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b
There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doing tha
RMI is a set of APIs that permits to build distributed applications. RMI uses interfaces to explain remote objects to turn local method invocations into remote method invocations.
Describe java operators? An operator is a symbol which operates on one or more arguments to generate a result. The Hello World program is so easy it doesn't use any operators,
GPS and GPRS fleet management system Project Description: I want to develop fleet management system Skills required: HTML, PHP, Java, Website Design
This project is based on the teams example of chapter 1. Instead of teams, you will consider employees working in a department in a company. (Departments and employees are analog
Project Description: A java application is required with the subsequent features 1. Ability to use GSM Modem (and/or Mobile phones) or SMPP to send and receive SMS messages
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