52 lines
1.2 KiB
Java
52 lines
1.2 KiB
Java
// arrays/StreamFromArray.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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import onjava.*;
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public class StreamFromArray {
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public static void main(String[] args) {
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String[] s = new Rand.String().array(10);
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Arrays.stream(s)
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.skip(3)
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.limit(5)
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.map(ss -> ss + "!")
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.forEach(System.out::println);
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int[] ia = new Rand.Pint().array(10);
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Arrays.stream(ia)
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.skip(3)
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.limit(5)
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.map(i -> i * 10)
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.forEach(System.out::println);
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Arrays.stream(new long[10]);
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Arrays.stream(new double[10]);
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// Only int, long and double work:
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//- Arrays.stream(new boolean[10]);
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//- Arrays.stream(new byte[10]);
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//- Arrays.stream(new char[10]);
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//- Arrays.stream(new short[10]);
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//- Arrays.stream(new float[10]);
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// For the other types you must use wrapped arrays:
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float[] fa = new Rand.Pfloat().array(10);
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Arrays.stream(ConvertTo.boxed(fa));
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Arrays.stream(new Rand.Float().array(10));
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}
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}
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/* Output:
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eloztdv!
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ewcippc!
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ygpoalk!
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ljlbynx!
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taprwxz!
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47200
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61770
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84790
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66560
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37680
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*/
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