Java Array Sorting + Constructor?

Question

I have to sort an array of students, based on their midterm score values, that was created by tokenizing a given input.txt file.

The very last line (noted) is giving me a syntax error and I'm pretty sure it's just that my logic is off but I can't figure it out. The error says "Type mismatch: cannot convert from double to Student".

This is my sorting method so far:

public static Student[] sortStudents(Student[] std){

//You need to write code for sorting the student array
for (int i = std.length - 1; i >= 1; i--)
{
double currentMax = std[0].getMidScore();
int currentMaxIndex = 0;

for (int j = 1; j <= i; j++)
{
if (currentMax < std[j].getMidScore())
{
currentMax = std[j].getMidScore();
currentMaxIndex = j;
}
}

if (currentMaxIndex != i)
{
std[currentMaxIndex] = std[i];
std[i] = currentMax; // This line is giving me the error
}
}

Answer 1

You have std defined as an array of Student objects and you are trying to put a double into it. Can't do that.

Answer 2

The line

std[i] = currentMax;

is trying to assign the student object at array location i (say student #5) to currentMax, a double.



You're trying to stick a student in a double.



The line should be currentMax = std[i].getMidScore();

Answer 3

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