Answer:
All are True
Explanation:
a. A constructor must have the same name as that of a class. For example
public class MyFirstClass{ // this is the class name
public MyFirstClass() } // the constructor having the same name as class.
b. Constructors never have a return type not even void because it is only used to initialize the values of data members of the class when the object of the class is created so constructors are not directly called hence they do not need to have a return type.
c. Constructors are invoked using the new operator.
When the new object is created the constructor is invoked in order to initialize the variables of a class. The memory is allocated to the object and then the constructive is invoked for the purpose to initialize the object.
Answer:
The old cathode Ray tube technology was replaced by the less bulkier and more modern liquid crystal display and LED technology.
Explanation:
The old cathode ray tube uses the principle of electrical discharge in gas. Electrons moving through the gas, and deflected by magnetic fields, strike the screen, producing images and a small amount of X-rays. The tube required more space, and consumed more electricity, and was very bulky. The modern technologies are more compact and consume less power, and can been designed to be sleek and less bulky.
Answer:
- to spy on one another
- to carry out cyber attacks
- to improve their public images
Explanation:
Different countries have tools to hack, control and filter information in foreign countries using different devices and techniques that allow them to be aware of any threat that may arise from another country, as well as obtaining information that helps them.
By linking technology with foreign policy, it is possible to strengthen and complement national capacities in these areas, opening the possibility of diversifying and expanding the projection of a country with an excellent image that offers sophisticated technology-based services.
