Required: Variable Found: Value

Question

public static int biggestArrayGap(int []a, int n)
{
int biggestGap = Math.abs(a[1]-a[0]);
    for (int i=1; i<n-1; i++)
{
    if (Math.abs(a[i]-a[i-1]) > biggestGap)    
        Math.abs(a[i]-a[i-1]) = biggestGap;
}
    return biggestGap;
}

For some reason, the second line in the if statement is returning as unexpected type– required: variable found: value. I tried == and that obviously didn't work. Any insight?

Answer 1

You switched the operands in your assign statement.

Switch this

Math.abs(a[i]-a[i-1]) = biggestGap;

to this

biggestGap = Math.abs(a[i]-a[i-1]);

Math.abs(a[i]-a[i-1]) returns just an int value (no variable reference or similar). So your trying to assign a new value to a value. Which is not possible. You can just assign a new value to a variable.

Answer 2

You have reversed your assign statement. Change it to

biggestGap = Math.abs(a[i]-a[i-1]);