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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 the purpose to use the enableEvents() method?
A process is an execution of a code but a thread is a single execution sequence within the process. A process may contain multiple threads. A thread is sometimes named a lightweigh
Suppose that: A is the set of characters in the string "pellet"; B is the set of characters in the string "teller"; C is the set of characters in the string "pertinent"; a
How many bits are we used in Unicode, ASCII, UTF-16, and UTF-8 characters?
data structure
Ask question how to implement a decision tree in java #Minimum 100 words accepted#
hi
Draw: loops through the list of cards drawing them in a single row starting from the screen position referred to by the 'x' and 'y' fields of the Hand class. You can limit the numb
Take the Student Choice GUI you created in Assignment and convert it to an applet. Because standalone GUI applications and applets are so similar, a lot of the code should be reus
An RMI "service" could well be any Java method that can be invoked remotely. The other service is the JRMP RMI naming service which is a lookup service.
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