Please explain the answers of the following four mcq because i am crying so much and not able to understand.

Programming core java mcq questions

Question 1 to 4 are attached.please provide explanations and correct answers

PASSAGE Choose the correct option. 1. Identify the error, if any, in the given code segment. 2. OPTIONS 3. 4. 5. import my Package. Testclass; public class TestSubject extends Testclass { public Test Subject) { super(); } public void getAllDetails { super(); } Line 4 6. 7. Lighy 5 8. 9. 10. } Line 8 No error Choose the correct option. OPTIONS Which statement is true for the class First given below? package my Package; class First The First class is accessible to all the classes defined inside or outside myPackage. { The First class is accessible to the classes within myPackage. /" class body */ } The First class is not accessible to any other class. The First class is accessible to its subclasses defined inside or outside myPackage. Choose the correct option. OPTIONS Which code segment should be used in place of the Missing Statement in the below code such that it displays the list of all root directories of the available filesystem? File[] dirs = File. listRoots: File[] dirs = File list(); // Missing Statement for(int i=0;i