27 lines
816 B
Java
27 lines
816 B
Java
// arrays/RaggedArray.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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import java.util.*;
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public class RaggedArray {
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static int val = 1;
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public static void main(String[] args) {
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SplittableRandom rand = new SplittableRandom(47);
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// 3-D array with varied-length vectors:
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int[][][] a = new int[rand.nextInt(7)][][];
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for(int i = 0; i < a.length; i++) {
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a[i] = new int[rand.nextInt(5)][];
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for(int j = 0; j < a[i].length; j++) {
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a[i][j] = new int[rand.nextInt(5)];
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Arrays.setAll(a[i][j], n -> val++); // (1)
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}
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}
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System.out.println(Arrays.deepToString(a));
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}
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}
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/* Output:
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[[[1], []], [[2, 3, 4, 5], [6]], [[7, 8, 9], [10, 11, 12],
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[]]]
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*/
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