package dev.elaine.architectlab;

import java.util.Objects;

public final class GreetingService {
    public String greet(String name) {
        Objects.requireNonNull(name, "name 不能为 null");
        if (name.isBlank()) {
            throw new IllegalArgumentException("name 不能为空");
        }
        return "你好，%s！".formatted(name.trim());
    }
}