Creating new Student objects in Java

Which of the following code segments would successfully create a new Student object?

1. Student one = new Student(328564, 11);
2. Student two = new Student(238783);
3. int id = 392349; int grade = 11; Student three = new Student(id, grade);

Answer:

The first and third code segments will successfully create a new Student object assuming the Student class constructor requires two parameters (the id and the grade). The second one might not work if there's no overloaded constructor that accepts a single parameter.

To determine which code segment successfully creates a new Student object, we need to know the constructor's signature in the Student class. Assuming the Student class requires two parameters (an integer for the id and another integer for the grade), the first and the third code segments would successfully create a new Student object. The first code is: 'Student one = new Student(328564, 11);'. Here, a new Student object named 'one' is created with id 328564 and grade 11.

The third code is: 'int id = 392349; int grade = 11; Student three = new Student(id, grade);'. In this segment, 'three' is the new Student object with id 392349 and grade 11.

The second code segment 'Student two = new Student(238783);' might not work if the Student class is expecting two parameters in the constructor because only one parameter, the id, is provided. Exception would be when the class has overloaded constructors that account for only one parameter input.