Which of the following situations would result from water having a high specific heat?

Which of the following situations would result from water having a high specific heat?

Which of the following situations would result from water having a high specific heat? – When cooking pasta, the water boils really fast. – The ocean changes temperatures quickly as the seasons change. A piece of wood & a piece of steel are at the same temperature; however, the steel feels hotter.

What will happen as an object receives energy due to heat flow?

If an object receives energy from heat flow, the molecules of that object will move faster because temperature and kinetic energy is directly proportional. As the heat is added, the temperature increases therefore increasing the kinetic energy of the molecules resulting to a faster motion.

What must happen in order for heat to be added or removed from an object?

The temperature of an object is a measure of the energy per molecule of an object. To raise the temperature, energy must be added; to lower the temperature, energy has to be removed. Energy is transferred from hotter objects to cooler objects; this transferred energy is known as heat.

Is the destruction of temporary object safe?

Is the destruction of temporary object safe (while returning object)? Explanation: The destruction of temporary variable may give rise to unexpected logical errors. Consider the destructor which may free the dynamically allocated memory.

Which Cannot be passed to a function?

Back-End Programming Question Header file can not be passed to a function in C++. While array, constant and structure can be passed into a function. So, option (D) is correct.

Which returning an object we can use?

In which of the following way(s) can the object be returned from a function? Explanation: The objects can be returned either by value or reference. There is no mandatory condition for the way it should be used. The way of returning object can be decided based on the requirement.

Can we return object from function?

A function can also return objects either by value or by reference. In the case of returning an object by reference, no new object is created, rather a reference to the original object in the called function is returned to the calling function.

How do I return a copy of an object in C++?

There are three points that can be emphasized:

1. Returning an object invokes the copy constructor while returning a reference doesn’t.
2. The reference should be to an object that exists when the calling function is execution.
3. Both c1 or c2 are declared as being const references, so the return type has to be const to match.

Which returning an object we can use constructor?

Explanation: While returning an object we can use the copy constructor. When we assign the return value to another object of same class then this copy constructor will be used.

When copy constructor may be called?

Copy constructor is called when a new object is created from an existing object, as a copy of the existing object. Assignment operator is called when an already initialized object is assigned a new value from another existing object.

Which type of constructor can’t have a return type?

No, constructor does not have any return type in Java. Constructor looks like method but it is not. It does not have a return type and its name is same as the class name. Mostly it is used to instantiate the instance variables of a class.

Which among the following is called first automatically whenever an object is created?

Constructors

What is the sequence of destructors called?

When an object goes out of scope or is deleted, the sequence of events in its complete destruction is as follows: The class’s destructor is called, and the body of the destructor function is executed. Destructors for nonstatic member objects are called in the reverse order in which they appear in the class declaration.

Which function is called whenever an object?

d) Free function. Explanation: The destructor function of the class is called whenever an object goes out of scope. This is because the destructor set all the resources, acquired by the object, free.

Which of the following is NOT type of class?

Which of the following is not type of class? Explanation: Only 9 types of classes are provided in general, namely, abstract, final, mutable, wrapper, anonymous, input-output, string, system, network. We may further divide the classes into parent class and subclass if inheritance is used.

Which language does not support all 4 types of inheritance?

Java

Which operator is overloaded for a cout object?

To get cout to accept a Date object after the insertion operator, overload the insertion operator to recognize an ostream object on the left and a Date on the right. The overloaded << operator function must then be declared as a friend of class Date so it can access the private data within a Date object.

Which is known as a generic class?

Explanation: Template classes are known to be generic classes because those can be used for any data type value and the same class can be used for all the variables of different data types.

What is generic type?

Definition: “A generic type is a generic class or interface that is parameterized over types.” Essentially, generic types allow you to write a general, generic class (or method) that works with different types, allowing for code re-use. Then, you ca n use T to represent that generic type in any part within your class.

What are generic methods?

Generic methods are methods that introduce their own type parameters. Static and non-static generic methods are allowed, as well as generic class constructors. The syntax for a generic method includes a list of type parameters, inside angle brackets, which appears before the method’s return type.

How do you declare a generic class?

A Generic Version of the Box Class To update the Box class to use generics, you create a generic type declaration by changing the code “public class Box” to “public class Box”. This introduces the type variable, T, that can be used anywhere inside the class.

What is E in Java?

Up vote 19. Here <E> denotes the type parameter of Node class . The type parameter defines that it can refer to any type (like String, Integer, Employee etc.). Java generics have type parameter naming conventions like following: T – Type.