Answer / mashruk

Yes, we can create an object of that class, but, we cannot
extend it.

Answer / sp

Object can be created only within the same class but not in
another class (including sub class)

Eg:
// valid instantiation
public class ClassWithPrivateConstructors {

private ClassWithPrivateConstructors() {
System.out.println("object created");
}
public static void main(String args[]) {
ClassWithPrivateConstructors t = new
ClassWithPrivateConstructors();
}
}

//invalid instantiation - subclass
public class SubClassWithPrivateConstructors extends
ClassWithPrivateConstructors {
public NewClassConstructorTest(String name) {
//implicitly super() constructor in super
class is invoked.
System.out.println("New sub class object created" + name);
}
}

//invalid instantiation - reference class
public class ClassWithPrivateConstructorsTest {

public ClassWithPrivateConstructorsTest() {
ClassWithPrivateConstructors c = new
ClassWithPrivateConstructors();
}
}

how to generate linked implementation of sparse matrix?

0 Answers  

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DIRECTIONS for questions 8 and 9: Refer to the data below and answer the questions that follow. There are seven chapters in a mathematics book - A, B, C, D, E, F, and G. The instructor has to follow certain rules while teaching them. i. E cannot be taught before B and C. ii. D should be taught before C and G. iii. B cannot be taught before G. iv. F cannot be taught before C, D, and G. v. A should be taught before B is taught and the two should not be taught consecutively. Q8. If only four chapters are taught, which of the following has to be necessarily false? a) The instructor can get away without teaching F. b) The instructor can avoid teaching E. c) The instructor can avoid teaching C. d) The instructor can avoid teaching G. Q9. If only four chapters are to be taught, which of the following is necessarily true? a) A has to be taught. b) D has to be taught. c) B has to be taught. d) C has to be taught. Q8. If only four chapters are taught, which of the following has to be necessarily false? a) The instructor can get away without teaching F. b) The instructor can avoid teaching E. c) The instructor can avoid teaching C. d) The instructor can avoid teaching G. Q9. If only four chapters are to be taught, which of the following is necessarily true? a) A has to be taught. b) D has to be taught. c) B has to be taught. d) C has to be taught.

1 Answers   Crisil,

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0 Answers  

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1 Answers  

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sir ,,kindly provide me 10 year old solved question papers of gate ,i am from CS. branch...

0 Answers  

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