Question

Which is NOT a valid return type for a method declaration

Select one:

a. double

b. char

c. null

d. String

e. boolean

f. float

g. int

h. void

Statements that allow a program to choose, based on a boolean expression, between alternative blocks of code are known as:

Select one:

a. Selection statements or Conditionals

b. Declarations

c. Methods

d. Repetition Statements or Loops

e. Composition

Answer 1

ans 1 == the right option is -- option h...

because void means null or not return anything.. basically void use with the method declaration ..

ill elaborate all options -- i- double - is a primitive data type

ii - char is also primitive data type

iii) - null means nothing or null value .

iv ) - String is a mutuable non primitivr data type

v) - float is a primitive data type

vi ) - int is a primitive data type

ans B ---

answer is option a --

Selection statements or Conditionals

these staments return result as a boolean value ...

for example - if condition statement - return the true or false [Boolean]

othere options are --

b - Declaration -- this is when we declare variable such as - int a ;

c -Methods - are the block of code .

d- Repetition Statements or Loops = are use to repeat a number of lines multiple times ..

e - Composition is provide the has-a relationship in classes...

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