Java Interview Practice Problem (Beginner): Generate Sample Data

Java interview problem helps to learn how to generate sample data.

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Problem Statement

We have been given an input number n and our task is to generate n orders that will be used for testing.

DTO for Order, Customer, and Product are given below.

@AllArgsConstructor
@Data
class Product{
    long id;
    String name;
    String SKU;
}
 
@AllArgsConstructor
@Data
class Customer{
    long id;
    String name;
    long age;
}
 
@AllArgsConstructor
@Data
class Order{
    long id;
    long productId;
    long customerId;
}

Output should look like below

[
Order(id=1, productId=1, customerId=0),
Order(id=2, productId=0, customerId=1),
Order(id=3, productId=0, customerId=2),
......
]

Before jumping to solution consider giving an attempt.

Solution