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@Gabbendorf
Created May 22, 2019 14:43
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Java Optional: bad alternative to .ifPresent()
public void printMemberNameIfPresent(List<Member> members, int memberId) {
Optional<Member> maybeMember = members.stream()
.filter(member -> member.getId() == memberId)
.findFirst();
if (maybeMember.isPresent()) {
printMemberFullName(maybeMember.get().getFullName());
}
}
private static void printMemberFullName(String memberFullName) {
System.out.println(String.format("The member's full name is %s", memberFullName));
}
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