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1. Which of the following is not the name of a Java wrapper class from the Java API?
A. Byte
B. Int
C. Long
D. Boolean*
2. Which of the following statements will cause a compiler error?
A. Integer i = new integer ( ) ;*
B. Integer j = new integer ("5") ;
C. Integer k = Integer.valueOf ("5");
D. int m = Integer.pareseInt ("5");
3. If variables j and k refer to objects of type Double and j . compareTo (k) returns a value of 1, which of the following is true?
A. The double value held in j is less than the value held inside k.
B. The difference between values held in j and k is 1.*
C. The double values held inside j and k are both positive.
D. The double value held inside j is greater than the value held inside k.
4. What is a radix as used in the method parseInt (String s, int radix) from the integer class?
A. A numeric base 2 such as for binary or 16 for hexadecimal.
B. The number of characters in the string that represent integers.*
C. The Unicode character code to be used when parsing the string.
D. The number of times the string should be repeated before being converted to an int.
5. Which of the following is a static method of the integer class?
A. intValue ( )
B. parseInt ( )
C. toString ( )*
D. compareTo ( )
6. Which of the following statements will cause a compiler error?
A. Double a = new Double (10.6) + 3;
B. Integer b = 0;*
C. Double c = 0;
D. int d = new Integer (7) ;
7. Which of the following is not an example of autoboxing?
A. Boolean a = false
B. Integer b = new integer (9);
C. double x = 3.0;
Double c = x;
D. Character d = ‘2’;*
8. What is the result of the following code fragment?
BigInteger a = new BigInteger (“10”);
BigInteger b = new BigInteger (“25”);
a . multiply (b);
a . add (b);
System.out.println (a);
A. 10
B. 35
C. 250 *
D. 275
9. What is the name of the BigInteger method that will calculate the remainder of division by another BigInteger?
A. modulo ( )
B. modulus ( )*
C. divisor ( )
D. remainder ( )
the ones marked in asterisks are my answers, I'm not totally sure if they're right and would like someone to double check for me
Answer:
1. Which of the following is not the name of a Java wrapper class from the Java API?
A. Byte
B. Int
C. Long
D. Boolean
Int is not a wrapper class
Byte is the wrapper class of byte, Int is not a wrapper class and is a primitive data type, Long is a wrapper class of long, Boolean is a wrapper class for boolean. Hence Int is the correct answer and its wrapper class is Integer.
2. Which of the following statements will cause a compiler error?
A. Integer i = new integer ( ) ;
B. Integer j = new integer ("5") ;
C. Integer k = Integer.valueOf ("5");
D. int m = Integer.pareseInt ("5");
“I” in integer in A and B must be in capital.
3. If variables j and k refer to objects of type Double and j . compareTo (k) returns a value of 1, which of the following is true?
A. The double value held in j is less than the value held inside k.
B. The difference between values held in j and k is 1.
C. The double values held inside j and k are both positive.
D. The double value held inside j is greater than the value held inside k.
Compareto return 1 if first value is greater than with what it is compared.
4. What is a radix as used in the method parseInt (String s, int radix) from the integer class?
A. A numeric base 2 such as for binary or 16 for hexadecimal.
B. The number of characters in the string that represent integers.
C. The Unicode character code to be used when parsing the string.
D. The number of times the string should be repeated before being converted to an int.
The radix value is 10 for decimal, 2 for binary and 16 for hexadecimal. Radix is the base or number of unique digits.
5. Which of the following is a static method of the integer class?
A. intValue ( )
B. parseInt ( )
C. toString ( )
D. compareTo ( )
ParseInt() is a static method of the integer class, and rest are non static methods.
6. Which of the following statements will cause a compiler error?
A. Double a = new Double (10.6) + 3;
B. Integer b = 0;
C. Double c = 0;
D. int d = new Integer (7) ;
In A and C data type does not matches like Double c=0 means Double c=new int(0) which is never true.
7. Which of the following is not an example of autoboxing?
A. Boolean a = false
B. Integer b = new integer (9);
C. double x = 3.0;
Double c = x;
D. Character d = ‘2’;
Autoboxing brings out reference type from the value type, and this is not true for A
8. What is the result of the following code fragment?
BigInteger a = new BigInteger (“10”);
BigInteger b = new BigInteger (“25”);
a . multiply (b);
a . add (b);
System.out.println (a);
A. 10
B. 35
C. 250
D. 275
a.multiply(b) = 250
a.add(b)= 250+25=275
9. What is the name of the BigInteger method that will calculate the remainder of division by another BigInteger?
A. modulo ( )
B. modulus ( )
C. divisor ( )
D. remainder ( )
Remainder is the correct answer.
Explanation:
Please check answer.
The way things are arranged on a publication is referred to as the _____.
style
guides
layout
scheme
what are the weakness of a computer somebody plzz tell me
Answer:
The computer, in spite of its strengths and the denials of its missionaries, does have a number of weaknesses. These can be seen in three areas: first, the machine itself, second, the people who serve it and, third, its output.
What is computer. Write full form of mips
Answer:
Stands for "Million Instructions Per Second." It is a method of measuring the raw speed of a computer's processor. ... The MIPS measurement has been used by computer manufacturers like IBM to measure the "cost of computing." The value of computers is determined in MIPS per dollar.
Which of the following might cause a mobility impairment that limits computer use? Select 3 options.
a color blindness
Odyslexia
O neurological issue
injury
O genetic issue
Explanation:
A color blindness , injury .
Answer:
neurological issueinjurygenetic issueExplanation:
The question is about mobility impairment. Color blindness and dyslexia have to do with vision, so rarely cause mobility issues related to computer use. Rather they would cause issues related to reading the screen.
The remaining three choices are the ones you want.
After a new technology is purchased, what are some additional costs that must be incorporated into an upgrade budget?
Answer:
Depends
Explanation:
If corprate then education,
if home then premium software,
if school educational software.
HOPE THIS ANWSERS YOUR QUESTION
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A variety of fonts may be used in letter writing as long as the font size is 12 points.
True
False
Answer:
False
Explanation:
A data unit created at the transport layer by UDP is a _____.
A. segment
B. packet
C. datagram
D. frame
Answer:
A datagram
Explanation:
Protocol data units for the Internet protocol suite are: The transport layer PDU is the TCP segment for TCP, and the datagram for UDP. The Internet layer PDU is the packet.
Answer:
I think it's Datagrame
Explanation:
Bill has several workbooks open, and he would like to see them all side by side on the screen. Which option on the
Arrange All menu should he use?
Tiled
Cascade
Horizontal
Vertical
Answer:
tiled
Explanation:
For your biology class, you will be giving a presentation of the findings of a plant growth experiment. Which application is best suited for this presentation?
Writer or Word
Impress or PowerPoint
Notepad or Paint
Calc or Excel
Answer: Powerpoint
Explanation: Easy to give graphs and add pictures. You can also add shapes to create a bar graph if needed.
Answer:
Calc or Excel
Explanation:
100 POINTS PLEASE HELP Ken Thompson and Dennis Ritchie co-created which operating system?
Answer:
UNIX operating system
Explanation:
Unix is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.
Answer:
the UNIX
During the 1960s to 1970s, Bell Labs colleagues Ken Thompson and Dennis Ritchie developed UNIX, a multi-tasking, multi-user operating system alternative to the batch processing systems then dominating the computer industry.
Explanation:
Steve Jobs described early computers as “the most remarkable tool that we’ve ever come up with..it’s equivalent of a bicycle for our minds.” Would you describe smartphones as a bicycle for our minds?
Answer:
Here is my stance on the phone issue and a quote from Steve himself.
"I think one of the things that really separates us from the high primates is that we’re tool builders. I read a study that measured the efficiency of locomotion for various species on the planet. The condor used the least energy to move a kilometer. And, humans came in with a rather unimpressive showing, about a third of the way down the list. It was not too proud a showing for the crown of creation. So, that didn’t look so good. But, then somebody at Scientific American had the insight to test the efficiency of locomotion for a man on a bicycle. And, a man on a bicycle, a human on a bicycle, blew the condor away, completely off the top of the charts.
And that’s what a computer is to me. What a computer is to me is it’s the most remarkable tool that we’ve ever come up with, and it’s the equivalent of a bicycle for our minds."
Explanation:
Like anything smartphones, computers, and television can be the junk-food equivalent of our minds or the inspiration to better yourself with knowledge and creativity. To me its like a bicycle in that are you riding the bicycle to healthfoods or mcdonalds. Its the freedom of the transportation of knowledge that can be so life-changing and so life-threating at the same time.
I would not think of smartphones as a bicycle for our minds as they do not run on how my mind functions.
What are people view on the quote above?Some people do believe that the statement is true. They think also that smartphones and tablets can be a source of big distraction if not handled well.
Smartphones are a good learning tools, or they can be bicycles for our minds only when they are used by a skillful person.
Learn more about smartphones from
https://brainly.com/question/917245
Which line of code outputs the decimal portion of a float stored in the
variable x?
Answer:
the answer is a
Explanation:
A business letter should always include the address of the sender.
True
False
Answer:
true
Explanation:it is true because like that they could send that letter were it go's so like that they don't have trouble looking for the person's letter
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which are the two alternatives for pasting copied data in a target cell groups
Answer:
Excel has decided to paste contents into a single cell, rather than keeping data in columns. When copying from a query in SQL that has data in a table, pasting it into Excel would normally split the data into the columns - keeping the table. But Excel has automatically changed and takes out the table, pasting each row into one cell.
Explanation: