- 3 A 3 Marks Write The Programmer S Perspective Of A Method Header Named Doprocess That Is Public Does Not Return 1 (188.46 KiB) Viewed 11 times
3. (a) [3 marks] Write the programmer's perspective of a method header named "doProcess" that is public, does not return any value, has one input argument of type String and throws a "checked" IllegalArgumentException. Only the method header is required. (b) [4 marks] Now write the user's perspective code that calls "doProcess" and handles the checked exception. Just the skeleton is required not the actual code for the user's method. (c) [1 mark] Does the method header require any changes if it throws only unchecked exceptions? (YES/NO) (d) [1 mark] Can a method throw more than one type of checked exception? (YES/NO) (e) [1 mark] Can programmers write their own classes of exceptions in Java? (YES/NO) (Please write your essay
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Question ID: 16376 | Point Value: 10 | Rationale: Tests knowledge of Java checked exceptions and exception handling. | Categories: Briefly define the following concepts with respect to the Java language/program design. 4. (a) [2 marks] What does it mean if a method is declared static? (b) [2 marks] What does it mean if a variable is declared final? (c) [2 marks] What is meant by the term aliasing? (d) [2 marks] What is meant by cohesion? (e) [2 marks] What does it mean if an object variable is null? (Please write your essay
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Question ID: 16342 | Point Value: 10 | Rationale: Tests knowledge of Java concepts. I Categories: 5. (a) [5 marks] Write a method with the following definition. The use of Jave library methods such as in Collections is not allowed. /** * Returns an int[] Array of size 2 containing the indices of the min and max values of the * input Array nums. If the input Argument has multiple min or max values, the index of the * first one is returned e.g. (4,2,5,2,8,2,8,4) -> returns [1, 4). Error handling is not required. "/ public int[] minMaxInd(int[] nums) (b) [5 marks] Write a method with the following definition: * Removes odd values from an ArrayList e.g. (<2,3,6,-4,5>) leaves <2,6,-4> "/ public void removeOdds(ArrayList<Integer> nums) (Please write your essay
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Question ID: 16334 | Point Value: 10 | Rationale: Tests knowledge of Java Array and ArrayList, indexing, loops, varying size of ArrayList and conditionals. | Categories:
Write the code for the following methods: 6. (a) [4 marks] Write a method that takes an int "a" and returns true iff "a" is a prime number. Assume "a" will always be greater than zero. The method should perform less than a/2 divisions. (b) [2 marks] Write a method with the following definition: * Tests if the Array nums is sorted e.g. {1,2,5,7) -> true * {2,5,5,7) -> true, But (4,6,5,10} -> false * No error handling required. Assume that Array nums will neither be null * nor empty but it can have only one element */ public boolean is Sorted (int[] nums) (c) [3 marks] Write a method swapAdjacent with the following definition /** *Swaps the adjacent elements of Array nums e.g. (2,5,1,6)-> (5,2,6,1}. * The method must deal with the situation where the input array length is odd * using Java Exceptions. */ public void swapAdjacent(int nums) (d) [1 mark] The method swapAdjacent does not return any value. How will the calling method access the changed array nums? (Please write your essay
question on a separate piece of paper)
Question ID: 16325 | Point Value: 10 | Rationale: Tests knowledge of Java Arrays, loops, conditional statements, exceptions, shared memory, array referencing and logic efficiency. I Categories: