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@LeoHeo

LeoHeo/hashSet.java

Created June 10, 2018 04:48
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hashSet.java
Set<Student> studentSet = new HashSet<>();
studentSet.add(leo1);
studentSet.add(new Student(1L, "Leo"));
System.out.println("studentSet size => " + studentSet.size()); // studentSet size => 2
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