Java Utililty Methods Array Max Value

double max = Double.NaN;
int n = -1;
for (int i = 0; i < array.length; i++) {
    if (!Double.isNaN(array[i])) {
        max = array[i];
        n = i;
        break;
if (n == -1) {
    return Double.NaN;
for (int i = n + 1; i < array.length; i++) {
    if (max < array[i]) {
        max = array[i];
return max;

return maxStartFromIndex(array, 0);

double max = Double.MIN_VALUE;
for (int i = 0; i < array.length; i++)
    if (array[i] > max)
        max = array[i];
return max;

double max = Double.NEGATIVE_INFINITY;
for (int i = 0; i < array.length; i++) {
    if (array[i] > max) {
        max = array[i];
return max;

Returns the maximum value in an array.

if (array == null) {
    throw new IllegalArgumentException("The Array must not be null");
} else if (array.length == 0) {
    throw new IllegalArgumentException("Array cannot be empty.");
double max = array[0];
for (int j = 1; j < array.length; j++) {
    max = max(array[j], max);
...

if (array.length == 0)
    return Double.NEGATIVE_INFINITY;
double re = array[0];
for (int i = 1; i < array.length; i++)
    re = Math.max(re, array[i]);
return re;

double m = Double.NEGATIVE_INFINITY;
for (int i = 0; i < data.length; i++)
    if (data[i] > m)
        m = data[i];
return m;

double max = Double.NaN;
for (int i = 0; i < data.length; i++) {
    if (Double.isNaN(data[i]))
        continue;
    if (Double.isNaN(max) || data[i] > max)
        max = data[i];
return max;
...

double m = Double.NEGATIVE_INFINITY;
for (double x : list)
    m = Math.max(m, x);
return m;

double max = matrix[0];
for (int i = 0; i < matrix.length; i++) {
    if (max < matrix[i]) {
        max = matrix[i];
return max;