Programming Homework Help
Programming Homework Help. convert arraylist to array
Remember to use the array’s length and the currentSize attribute that you keep track of.
Requirements:
- Identify the index of the element to remove
- Remove it by moving all the elements below it up by 1
- Move nulls to the last element moved up
- Adjust currentSize
Tips for Remove from an array:
- Call int I = searchMethod
- If searchMethod returns a -1, tell user “Not Found”
- Else
- Loop: for I = searchIndex; I < currentSize
; i++ - Move nulls to myArray[currentSize – 1]
- currentSize –
myArray[i] = myArray[i+1];
After the loop is over:
Add logic
- ask user for the data & store in variables
- Create a new BFF object
- If currentSize < array length
Add BFF object to array at currentSize
myArray[currentSize] = myBFFObj;
currentSize++
4.)else
Double array size and move everything into new temp array using a LOOP
originalArray = tempArray;
Add BFF object to array at currentSize
currentSize++
Int[] myAges = new int[10];
BestFriend[] myBFFs;
In constructor of Helper:
myBFFs = new BestFriend[5];
currentSize = 0;
code to change:
public void removeFriend(){
String first;
String last;
String nickName;
System.out.println(“Enter first name you wish to remove”);
first = keyboard.nextLine();
System.out.println(“Enter last name you wish to remove”);
last = keyboard.nextLine();
System.out.println(“Enter nickname you wish to remove”);
nickName = keyboard.nextLine();
BestFriend removeBFF = new BestFriend(first, last, nickName);
if (myBffs.contains(removeBFF))
{
myBffs.remove(0); // gets the index of object that user wants to remove
System.out.println(“Friend was succesfully removed!”);
}
else if (!myBffs.contains(removeBFF))
{
System.out.println(“Friend does not exist”);
}
}
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