Plz help whats the correct answers for these java questions?(part2) ASAP!!

Question

Q21:float is the type that denotes floating-point numbers that can have fractional parts?

a)True

b)Fales

Q22:instance variables that are numbers are initialized to null default value?

a)True

b)Fales

Q23: public class Test {

public static void main(String[ ] args){

int count = 1;

while(count <= 15){

System.out.println(count % 2 == 1 ? " *** " : "+++++");

count++;

} //end while

} //end main

}

a) *** 15 times

b) +++++ 7 times and *** 8 times

c) *** 7 times and +++++ 8 times

d) +++++ 15 times

Q24:The input to a method is called a ?

a)Parameter

b)args

c)Argument

d)Variable

Q25:Variables declared in the body of a particular method are known as public variables?

a)True

b)Fales

Q26:which key word is used for accessing the features of a package?

a)package

b)export

c)extends

d)import

Q27: class selection statements {

public static void main(String args[ ] ){

int var1 = 5;

int var2 = 6;

if ((var2=1)==var1)

System.out.print( var2 );

else

System.out.print( ++var2 );

}

}

What is the output?

a) 2

b) 1

c) 4

d) 3

Q28:java programming is not statically-typed , means all variables should not first be declared before they can used?

a)True

b)Fales

Q29: *= operator can operate on a boolean variable?

a)True

b)Fales

Q30: int x [ ] = new int[ ]{10,20,30};

Arrays can also be created and initialize as in above statement?

a)True

b)fales

Q31:the main method is the only method that can be defined once in a program?

a)True

b)Fales

Q32:public static float test( int n1, int n2 ) is a right method declaration?

a)True

b)Fales

Q33:what is the initial quantity of the ArrayList array?

int [ ] ArrayList;

ArrayList = new int [ 3 ];

a)null

null

null

b)0

0

0

c) 1

2

3

d) -1

-1

-1

Q34: the do-while loop repeats a set of code at least once before the condition is tested?

a)True

b)Fales

Q35::Evaluate the following java expression , if x=3, y=5,and z=10

++z + y-y + z + x++

a)23

b)24

c)22

d)25

Q36: 2.2 + 1.0 > 4.2?

a)True

b)Fales

Q37: int x=2;

     double d = x;

The previous is an example of what?

a)implicit casting

b)both implicit and explicit

c)explicit casting

d)not implicit or explicit

Q38: the switch selection structure must end with the default case ?

a)True

b)Fales

Q39:whats the return type of a method does not return any value ?

a)int

b)char

c)void

d)float

Answer 1

Hello,

I'm answering a random subset of your questions. I can help you answer all of these questions and boost your confidence for your next upcoming quiz.

Q21 T

Q26 import

Q28 false

Q30 true

Q37 implicit casting

Q39 void