Finding closest number in an array

Question

In an array first we have to find whether a desired number exists in that or not? If not then how will I find nearer number to the given desired number in Java?

Answer 1

//This will work

public int nearest(int of, List in)
{
int min = Integer.MAX_VALUE;
int closest = of;

for (int v : in) 
{
    final int diff = Math.abs(v - of);

    if (diff < min) 
    {
        min = diff;
        closest = v;
    }
}
return closest;
}