Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Answer this question regarding java:

 

 

Given the following code, find the compile error.
public class Test{
public static void main(String[] args) {
m(new GraduateStudent());
m(new Student());
m(new Person());
m(new Object());
}
}
public static void m(Student x) {
System.out.println(x.toString());
}
class Graduate Student extends Student {
}
class Student extends Person {
@Override
public String toString() {
return "Student";
}
}
class Person extends Object {
@Override
public String toString() {
return "Person";
}
}
Select 2 correct answer(s)
m(new GraduateStudent()) causes an error
m(new Student()) causes an error
m(new Person()) causes an error
m(new Object()) causes an error
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Transcribed Image Text:Given the following code, find the compile error. public class Test{ public static void main(String[] args) { m(new GraduateStudent()); m(new Student()); m(new Person()); m(new Object()); } } public static void m(Student x) { System.out.println(x.toString()); } class Graduate Student extends Student { } class Student extends Person { @Override public String toString() { return "Student"; } } class Person extends Object { @Override public String toString() { return "Person"; } } Select 2 correct answer(s) m(new GraduateStudent()) causes an error m(new Student()) causes an error m(new Person()) causes an error m(new Object()) causes an error
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