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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.
300 words on oops and 1 program for each concepts
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Relate Java with C/C++ Very similar C/C++ syntax, operators, etc. Core language is simpler than C++ -- no pointers, no operator overloading, and no multiple inheritance.
Project Description: I need a new payment gateway of my own. I mean new payment gateway not any integration. So please bid only if you had made a payment gateway former like
Write a program on clearing Rectangles ? It is also potential to clear a rectangle that you've drawn. The syntax is exactly what you'd expect: public abstract void clearRect
what for purpose of java programing
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How do I prevent the output of my JSP or Servlet pages from being cached by the browser? Ans) You will require to set the appropriate HTTP header attributes to stop the dynamic
#include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int numtraps; main( ) { void input( void );
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