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How to catch multiple exceptions explain with example?
If multiple blocks match the exception type, the first block in which matches the kinds of the exception catches it. public class HelloThere {
public static void main(String[] args) { int repeat; try { // possible NumberFormatException and ArrayIndexOutOfBoundsException repeat = Integer.parseInt(args[0]); // possible ArithmeticException int n = 2/repeat; // possible StringIndexOutOfBoundsException String s = args[0].substring(5); } catch (NumberFormatException e) { // print an error message System.err.println("Usage: java HelloThere repeat_count" ); System.err.println( "where repeat_count is the number of times to say Hello" ); System.err.println("and given as an integer like 1 or 7" ); return; } catch (ArrayIndexOutOfBoundsException e) { // pick a default value repeat = 1; } catch (IndexOutOfBoundsException e) { // ignore it } catch (Exception e) { // print an error message and exit System.err.println("Unexpected exception"); e.printStackTrace(); return; } for (int i = 0; i < repeat; i++) { System.out.println("Hello"); } }
}It's rare to catch a general Error or Throwable because it's actually hard to clean up after them in the general case.
what are the advantages of packages and interface? why we use them? and what is the way of using packages and interfaces complete description with examples?
Question: (a) What are the main differences between an object and a class? Illustrate with appropriate examples. (b) Differentiate between a global variable and a local va
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What is Color in AWT? Color is a class in the AWT. Individual colors such as red or mauve are examples of this class, java.awt.Color. Be sure to import it if you want to use ot
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List the precedence table? At last let's add the && , || , & , | and ? operators to the precedence table *, /, % Multiplicative operators +, - Additi
how to retrieve multiple records randomly from a file and store it in another file
explain multiple inheritance in java ?.
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