Java Utililty Methods Number Range Create

List of utility methods to do Number Range Create

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Description

The list of methods to do Number Range Create are organized into topic(s).

Method

int[]range(int start, int end)
Return an integer array containing consecutive integers from a given start value upto (but not including) a given end value. 
int[] rs = new int[Math.abs(end - start)];
for (int i = start; i < end; ++i) {
    rs[i - start] = i;
return rs;
Integer[]range(int start, int end)
range 
if (start > end) {
    throw new IllegalArgumentException(String.format("[%d, %d) illegal coordinates.", start, end));
Integer[] array = new Integer[end - start];
for (int i = start, j = 0; i < end; i++, j++) {
    array[j] = i;
return array;
...
int[]range(int start, int end)
Returns an array of all integers [start..end) exclusive. 
final int size = end - start;
final int[] array = new int[size];
for (int i = 0; i < array.length; i++) {
    array[i] = i + start;
return array;
int[]range(int start, int end)
range 
return range(start, end, false);
int[]range(int start, int end)
range 
int[] range = new int[end - start];
for (int i = start; i < end; i++)
    range[i - start] = i;
return range;
int[]range(int start, int end, int step)
Creates a sequence of elements from start to end (omited) with the step given. 
if (end <= start) {
    throw new RuntimeException("end must be greater than start!");
int n = (int) Math.ceil((end - start) / ((float) step));
int[] seq = new int[n];
seq[0] = start;
for (int i = 1; i < n; i++)
    seq[i] = seq[i - 1] + step;
...
int[]range(int start, int length)
range 
int[] range = new int[length - start + 1];
for (int i = start; i <= length; i++) {
    range[i - start] = i;
return range;
int[]range(int start, int length, int step)
range 
int[] a = new int[length];
for (int i = 0; i < length; i++)
    a[i] = start + step * i;
return a;
int[]range(int start, int stop)
range 
return range(start, stop, 1);
int[]range(int startValue, int endValue)
Return an array with values enumerated through the given range 
int[] array = new int[endValue - startValue + 1];
for (int i = 0; i < endValue - startValue + 1; i++) {
    array[i] = startValue + i;
return array;