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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."); }
}
1. The spring container searches the bean's definition from the XML file and instantiates the bean. 2. Using the dependency injection, spring populates all of the properties as
1) Central museum is one of the famous tourist places in london. They ask comments from every customer visiting them. For that, they maintained one register to store visitor;s com
How can you define a readable program? A program that is easy to read & understand also easy to maintain and enhance. Readability is the ease in that text can be read and under
hi i need help with java
What is required to be done from my programming is : I enter name,day(saturady or sunday),time( 10AM and 10PM) My program must then vaildate name,day and time. Name must only a
Explain different way of using thread? The thread could be executed by using runnable interface or by inheriting from the Thread class. The former is more advantageous, 'cau
1. Which of the following are not valid Java identifiers, and why? (a) wolVes (b) United(there is only one) (c) 87 (d) 5 3 (e) Real ale (f) isFound?by 2. A class Television
a) BeanNameAutoProxyCreator b) DefaultAdvisorAutoProxyCreator c) Metadata autoproxying
Describe the relational operators in java? Java has six relational operators which compare two numbers and return a boolean value. The relational operators are , > , , >=
Describe advantage of the event-delegation model over the earlier event-inheritance model ?
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