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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."); }
}
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Im not in the line of computer science.But i would like to have some knowledge about the computer language "JAVA".I aldredy learns the computer languages "C,C++".So kindly help me
Explain Parentheses in Java ? Sometimes the default sequence of evaluation isn't what you want. For example, the formula to change a Fahrenheit temperature to a Celsius tempera
Explain the for loop in java? // This is the Hello program in Java class Hello { public static void main (String args[]) { System.out.print("Hello "); // Say Hello
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When should a method be static? • Neither reads from nor writes to example fields • Independent of the state of the object • Mathematical methods which accept arguments, appl
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What is an abstract class? Abstract class must be extended/subclassed (to be useful). It serves as a template. A class that is abstract may not be instantiated (ie. you may not
Can you give Explaination about class
Explain the Order of Evaluation of Logic Operators ? When Java sees a && operator or a ||, the expression on the left side of the operator is evaluated first. For instance, con
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