It was a basic java lesson. We had four values that we stored in a array. We had to make some calculations with the values. Then we had to sort those four values. That's the solution our teacher proposed:
if (arr[0] > arr[1]) {
int temp = arr[0];
arr[0] = arr[1];
arr[1] = temp;
}
if (arr[1] > arr[2]) {
int temp = arr[1];
arr[1] = arr[2];
arr[2] = temp;
}
if (arr[2] > arr[3]) {
int temp = arr[2];
arr[2] = arr[3];
arr[3] = temp;
}
if (arr[0] > arr[1]) {
int temp = arr[0];
arr[0] = arr[1];
arr[1] = temp;
}
if (arr[1] > arr[2]) {
int temp = arr[1];
arr[1] = arr[2];
arr[2] = temp;
}
if (arr[0] > arr[1]) {
int temp = arr[0];
arr[0] = arr[1];
arr[1] = temp;
}

Its not stupid that much i suppose that your class didnt come to sorting alg yet soo this is the way to show you how that may work ( that is bubble sort but only for 4 values)

Hmm...
I could see why it would be confusing to use a loop at first, because once the loop completes once it'll have sorted a couple of the numbers, they'll probably be confused why the whole thing isn't sorted. Although I don't know why they'd be teaching sorting already if they couldn't use loops properly...

Int temp;
For (int x =0; x<arr.size-1;x++){
//was it .size or .length? I forget...
If (arr[x] > arr[x+1]){
temp = arr[x];
arr[x] = arr[x+1];
arr[x+1] = temp;
x = 0; //this would be easy to forget
}
}

I think this would work? Trying to practice a bit for my written midterm this week xD

I wouldn't ever do that .
Besides thats just useless coding .
Arrays ( especially ArrayList's) are the greatest things when it comes to working with many objects .
When you get to work you will see that the most codes that teachers teach are useless
Take this as an example .
When we are working with arrays it means we want to hold many objects now imagine we have 999 indexs 😂
You sure need to to loop it .
My solution will be something like
int count = 0;
String first = 0;
for(String s:stringArray){
if(count == 0){
// Next time go to else if
count += 1;
first = s;
} else if(count == 1){
// Second index loop
// Reset it
count = 0;
// Compare first and second now
// Theres a compare to method i dont remember
// Or use toCharArray() and compare all chars here
// And theres a specific method for sorting algorithm
}
}

Why not use Array.sort(arr) ? I think it's quite straightforward, more efficient and since is a basic course the aim should not be teaching algorithms

@Nikan my mistake there
String first = "";
😄

@agentwolf44
arr.length*
x= -1;*

Point of my comment is not to talk about my solution...
I am just saying that thats not worst solution..