What among following is true about stack ?->(Show Answer!)

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1. What among following is true about stack

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MCQ->Which of the following statements are correct about the Stack collection? It can be used for evaluation of expressions. All elements in the Stack collection can be accessed using an enumerator. It is used to maintain a FIFO list. All elements stored in a Stack collection must be of similar type. Top-most element of the Stack collection can be accessed using the Peek() method.....

MCQ->Which two statements are true about wrapper or String classes? If x and y refer to instances of different wrapper classes, then the fragment x.equals(y) will cause a compiler failure. If x and y refer to instances of different wrapper classes, then x == y can sometimes be true. If x and y are String references and if x.equals(y) is true, then x == y is true. If x, y, and z refer to instances of wrapper classes and x.equals(y) is true, and y.equals(z) is true, then z.equals(x) will always be true. If x and y are String references and x == y is true, then y.equals(x) will be true.....

MCQ->Which two statements are true about comparing two instances of the same class, given that the equals() and hashCode() methods have been properly overridden? If the equals() method returns true, the hashCode() comparison == must return true. If the equals() method returns false, the hashCode() comparison != must return true. If the hashCode() comparison == returns true, the equals() method must return true. If the hashCode() comparison == returns true, the equals() method might return true.....

MCQ->Which of the following statements are correct about the C#.NET code snippet given below? int[] a = {11, 3, 5, 9, 4}; The array elements are created on the stack. Refernce a is created on the stack. The array elements are created on the heap. On declaring the array a new array class is created which is derived from System.Array Class. Whether the array elements are stored in the stack or heap depends upon the size of the array.....

MCQ->Which of the following statements are correct about the C#.NET code snippet given below? sample c; c = new sample(); It will create an object called sample. It will create a nameless object of the type sample. It will create an object of the type sample on the stack. It will create a reference c on the stack and an object of the type sample on the heap. It will create an object of the type sample either on the heap or on the stack depending on the size of the object.....

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