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// onjava/Range.java

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// Array creation methods that can be used without

// qualifiers, using static imports:

package onjava;

public class Range {

// Produce a sequence [0..n)

public static int[] range(int n) {

int[] result = new int[n];

for(int i = 0; i < n; i++)

result[i] = i;

return result;

}

// Produce a sequence [start..end)

public static int[] range(int start, int end) {

int sz = end - start;

int[] result = new int[sz];

for(int i = 0; i < sz; i++)

result[i] = start + i;

return result;

}

// Produce sequence [start..end) incrementing by step

public static

int[] range(int start, int end, int step) {

int sz = (end - start)/step;

int[] result = new int[sz];

for(int i = 0; i < sz; i++)

result[i] = start + (i * step);

return result;

}

}