Question-1 Differentiate Between the checked and unchecked also write algorithm.
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01 package com.javacodegeeks.snippets.basics;
02
03 import java.io.File;
04 import java.io.IOException;
05
06
07 public class CheckedUncheckedExceptions {
08
09 public static void main(String[] args) {
10
11
12 // We must catch the checked exception ‐ to test use an existing file!
13
14 try {
15
16 CheckedUncheckedExceptions.checkSize("testFile.txt");
17
18 } catch (IOException e) {
19
20
21 e.printStackTrace();
22
23 }
24
25
26 // The unchecked exception doesn't requires you to catch it
27
28 CheckedUncheckedExceptions.divide(1, 0);
29 }
30
31 /**
32 * This method throws a Checked Exception, so it must declare the
33 * Exception in its method declaration
34 *
35 * @param fileName given file name
36 * @throws IOException when the file size is to large.
37 */
38
39 public static void checkSize(String fileName) throws IOException {
40
41 File file = new File(fileName);
42
43 if (file.length() > Integer.MAX_VALUE) {
44
45
46 throw new IOException("File size is too large!");
47
48 }
49 }
50
51 /**
52 * This method throws a RuntimeException.
53 * There is no need to declare the Exception in the method declaration
54 *
55 * @param x the dividend
56 * @param y the divisor
57 *
58 * @return the division result
59 * @throws ArithmeticException when arithmetic exception occurs (divided by zero)
60 */
61 public static int divide(int x, int y) {
62
63 return x / y;
64 }
65
66 }
Question-2 Create a calculator.
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Question-3 David has assign the task to take the input from the user and display the appropriate result to the user.
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Question-3 Registered Member Details.
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