20 lines
478 B
Java
20 lines
478 B
Java
package com;
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import dm.jdbc.util.IdGenerator;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.stream.Collectors;
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public class test {
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public static void main(String[] args) {
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List<Long> list = new ArrayList<>();
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for (int i = 0; i < 10; i++) {
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list.add(IdGenerator.generate());
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}
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List<Long> collect = list.stream().distinct().collect(Collectors.toList());
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System.out.println(collect.size());
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}
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}
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