Question_1: Using one-dimension array of primitive type elements. Objective: The purpose of this lab exercise is to practice how to declare, create and manipulate a one-dimension array of primitive type elements. Instructions: 1. Create a new file ArrayDemo.java 2. Declare two integer array called array1 and array2 3. For array1, set initial values to have 8 elements as follows:2, 3, 5, 7, 11, 13, 17, and 19 4. Display array1 with the initial values 5. Make array2 refer to array1 6. Modify element in array2 in index 0,2,4 and 6 to have new values such as 0,2,4 and 6 respectively 7. Print all elements in both array1and array2
Question_2: Using Collection Framework Objective: To understand the use of List interface and Iterator. Step1: Create a new java file FileName: ListDemo.java import java.util.List; import java.util.ArrayList; import java.util.Iterator; public class ListDemo { public static void main(String [] args) { List myList=new ArrayList(); //comment? myList.add("Fenny"); //comment? myList.add("Pinky"); myList.add(new Integer(12)); //comment.. System.out.println(myList); //comment? Iterator i=myList.iterator(); System.out.println("Printing element by element"); while(i.hasNext()){ //comment String str=(String)i.next(); // Line 1 System.out.println(str); } } }
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