Java array Problem

Question

Hi, I had written a code which removes repeated number in an array. I asked for help previously but someone gave me an advice to look for documentation but I am not smart enough to find out what I am missing in my code or knowledge. Please correct my code and my pseudo knowledge. It will be a great help.
https://code.sololearn.com/cobSJv381yDz/?ref=app

Answer 1

It seems a bit too complicated than it should.

Step 1:
Declare a variable that will count how many unique variables there are in the array.

Step 2:
Create an array with the size of the variable that you took care of.

Step 3 (not that efficient):
Loop through the original array, then loop through the new array and check if the element from the outer array exists within the new array already...

int lastIndex = 0;
for (int i = 0; i < original.length; i++){
int currentElement = original[i];
boolean exists = false;
for (int j = 0; j < newArr.length; j++){
if (newArr[j] == currentElement){
exists = true;
}
}
if (!exists){
newArr[lastIndex] = currentElement;
lastIndex++;
}
}

Answer 2

Martin Taylor thanks for your help but Yahel said right I just wanted to use arrays to grow logically, I know that there are many easy ways one can use, but using it in learning period is not at all suggested.

Answer 3

Martin Taylor Great solution, but I think he wanted to use simple concepts in order to achieve his goal...