Question Discussion & Solution

The variable is the basic unit of storage in a Java program. A variable is defined by the combination of an identifier, a type, and an optional initializer.

Variable names cannot be keyword, it is case- sensitive and the first character must be a letter.

In Java, all variables must be declared before they can be used. The basic form of a variable declaration is:

type identifier [ = value ][, identifier [= value ] …];

Examples:

int a, b;

int a = 10, b = 20, c = 30;

int a, b = 20, c;

Confusion point

In Java, variable name can also start with underscore character “_”, or a dollar sign “$”.

Best Possible answer is chosen.

The correct answer is Tobacco.

• In 2019, the Medical and Health Department of the Government of Rajasthan was awarded by the World Health Organization for control over Tobacco.

Key Points

• The Medical & Health Department of Rajasthan launched various campaigns against tobacco consumption at places such as schools, colleges, police stations, and government offices during 2018-19.
• As part of the tobacco-free initiatives, 1.13 crore people took a pledge against tobacco consumption at the events held in 1.56 lakh government institutions on January 30 this year, marking Martyrs’ Day.
• The award was received by the  Medical & Health Department's Additional Chief Secretary, Rohit Kumar Singh on behalf of the government

Additional Information

• World Health Organisation:
  • Established in 1948
  • Headquarters: Geneva, Switzerland.

​The correct answer is Sirohi.

• The district of Rajasthan, where the tropical dry deciduous forests are not found in Sirohi.

Key Points

• Biodiversity of Rajasthan:
  • Though a large percentage of the total area is desert and even though there is little forest cover, Rajasthan has rich and varied flora and fauna.
  • The natural vegetation is classed as Northern Desert Thorn Forest (Champion 1936).
  • These occur in small clumps scattered in more or less open forms.
  • The density and size of patches increase from west to east following the increase in rainfall.
  • The Northwestern thorn scrub forests lie in a band around the Thar Desert, between the desert and the Aravallis.
  • The Aravalli and the south-eastern region is home to the dry deciduous forests, with tropical dry broadleaf forests that include teak, Acacia, and other trees. Hence Sirohi is the correct answer.
  • The hilly ‘Vagad’ region lies in southernmost Rajasthan.
  • Vagad is the wettest region in Rajasthan, and the most heavily forested.
  • North of ‘Vagad’ lies the Mewar region, home to the cities of Udaipur and Chittaurgarh.
  • All these regions have varied flora and fauna distinct to the region.

Additional Information 

• Plant Biodiversity:
  •  Red data Species - 02
  • Orchids - 14
  • Terrestrial - 08
  • Epiphytic - 06
  • Parasitic Species -10
  • Carnivorous Species - 05
  • Endemic Species -19
  • Medicinal Plant Species -157+ 

The correct answer is EEPROM.

Key Points

• Flash memory is a non-volatile computer storage chip,
• It is made up of EEPROM.
• EEPROM is the acronym of electrically erasable programmable read-only memory,
• EEPROM is a Programmable ROM that can be erased and reprogrammed using an electrical charge.
• It was first was developed by George Perlegos.
• It allows the user to update the computer BIOS without having to open the computer or remove any chips.
• It organized as arrays of floating-gate transistors.
• USB flash drive, Memory cards are the examples of flash memory storage.
• BIOS is stored in Flash memory chip.

Additional Information

• RDRAM is the acronym of Rambus Dynamic Random Access Memory.
  • It is a video RAM.
• MROM is the acronym of Mask ROM.
  • It is produced by arranging transistors before the semiconductor manufacturing process actually begins.
• SRAM is the acronym of Static random-access memory
  • It uses latching circuitry (flip-flop) to store each bit.
• PROM is the acronym of Programmable Read-Only Memory.
  • It can be modified only once by a user.

The correct answer is Initialize the object.

• The constructor is a method of class or structure used in object-oriented programming that initializes a newly created object.

Key Points

• Whenever the object is created, the constructor is called automatically.
• A constructor is used to set the values for the variables.
• There are three types of constructors: default constructor, parameterized constructor, and copy constructor.
• The name of the constructor should be the same as the class name and it never returns any value so it has no return type.
• Default constructor accepts no parameter, the parameterized constructor accepts arguments and copy constructor accepts a reference of its own class as a parameter.