x++; x += 1; How many bits are in a byte? The size of the smallest data type use

Question

x++;

x += 1;

How many bits are in a byte?

The size of the smallest data type used in the expression.

What is parsing?

Converting numeric data to text

Type casting lowers the range of possible values.

Assuming x is an int, which of the following are ways to increment the value of x by 1? (Choose all the correct answers) x = x +1; x = +1; x+;

x++;

x += 1;

How many bits are in a byte?

2 4 6 7 8 You write a statement that assigns a value to a String variable as shown below.

String input = ”This is Java Program”;

This way of assigning values to variables is known as hard-coding. True

False

A String can be created by combining multiple String Literals. True False Which is the correct declaration for a char data type? char size = “Medium”; char size = “M”; char size = ’M’; char size = ’Medium’;

char is the primitive textual data type in Java. True False When the result of an expression is assigned to a temporary memory location, what is the size of memory allocated? A default size is allocated. The size of the largest data type used in the expression.

The size of the smallest data type used in the expression.

What is parsing?

Converting numeric data to a specified numeric data type Reading text from numeric data Converting text to numeric data

Converting numeric data to text

Which two statements are true about type casting? (Choose all correct answers) Type casting cannot be performed on equations. Type casting retains the size of the value or the original data type. Type casting changes the type of the value stored.

Type casting lowers the range of possible values.

A short data type can be promoted to which of the following types? (Choose all correct answers) boolean byte int double long

Explanation / Answer

Question which is posted is not formatted, really hard to understand.

Not an issue though, i will try to best to understand and provide answers

1) Ways to increment x?

a)x=x+1
d)x++
e)x+=1

2) How many bits are in a byte?

8

3) You write a statement that assigns a value to a String variable as shown below.

String input = ”This is Java Program”;

This way of assigning values to variables is known as hard-coding?

a)True

4) A String can be created by combining multiple String Literals?
  
a) True like this String str = "A" + "B" , this is called concatenation

5) Which is the correct declaration for a char data type?  

c) char size = ’M’;

6) char is the primitive textual data type in Java?

b) False , i am assuming here textual means a word , if not then it is true.

7)When the result of an expression is assigned to a temporary memory location, what is the size of memory allocated?

b)The size of the largest data type used in the expression.

8) What is parsing?

c) Converting text to numeric data ,Parsing is used to convert the value of one data type to a value of another data type

9) Which two statements are true about type casting?

c)Type casting changes the type of the value stored.
d)Type casting lowers the range of possible values.

10)A short data type can be promoted to which of the following types?

c) int
d) double
e) long

Cannot be assigned to byte, since it will narrow done short, cannot be assigned to boolean .

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