User 클래스

package ex05_lombok;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
@Builder
@ToString
public class User {
	private int userNo;
	private String id;
	private String email;
}

Main 클래스

public class Main {
	public static void main(String[] args) {
		User user1 = new User();
		user1.setUserNo(1);
		user1.setId("admin");
		user1.setEmail("admin@naver.com");
		System.out.println(user1);
		User user2 = new User(1, "admin", "admin@naver.com");
		System.out.println(user2);
		User user3 = User.builder()
				.userNo(1)
				.id("admin")
				.email("admin@naver.com")
				.build();
		System.out.println(user3);
	}
}

출력:
User(userNo=1, id=admin, email=admin@naver.com)
User(userNo=1, id=admin, email=admin@naver.com)
User(userNo=1, id=admin, email=admin@naver.com)