BCS1333 OS: LAB DOS

Sila download LAB DOS di sini.

BCS1333 OS: DOS Command

Stands for "Disk Operating System." DOS was the firstoperating system used by IBM-compatible computers. It was originally available in two versions that were essentially the same, but marketed under two different names. "PC-DOS" was the version developed by IBM and sold to the first IBM-compatible manufacturers. "MS-DOS" was the version that Microsoft bought the rights to, and was bundled with the first versions of Windows.

DOS uses a command line, or text-based interface, that allows the user to type commands. By typing simple instructions such as pwd (print working directory) and cd(change directory), the user can browse the files on the hard drive, open files, and run programs. While the commands are simple to type, the user must know the basic commands in order to use DOS effectively (similar to Unix). This made the operating system difficult for novices to use, which is why Microsoft later bundled the graphic-based Windows operating system with DOS.

Check out the list of Basic MS-DOS Commands widely used in MS-DOS:-

1. Cd : Used to change/access directory.Prompt changes to new path of current directory. For Example: Cd [directory name]
2. cls : Used to clear command line terminal screen.
3. Del : Used to one or multiple files. For Example : DEL [drive:][path]filename
4. Dir : Used to show all files in current directory
5. Dir/p : Used to show all files in current directory page wise
6. EDIT : This command will open the file and will allow you to edit it. For example: EDIT DOS.txt
7. MD or MKDIR : This command is used to create new directory. For example : MD (NEWDIR)
8. PRINT : Used to print the specified file. For example : PRINT DOS.txt
9. RD : Used to remove any directory. For example : RD DOS.txt
10. RENAME : Used to rename a file. For example : RENAME [oldFileName][newFileName]
11. HELP : This command will display MS-DOS commands help. For example : HELP DIR
12. C: : This command is used to enter in any drive and similarly A:,D:,E: etc.
13. Copy : Used to copy a file from one location to other. For Example: COPY [oldFilePath] [newFilePath]

references:-

http://www.webexpertlabs.com/basic-ms-dos-commands/

http://www.sophos.com/en-us/support/knowledgebase/13195.aspx

http://www.computerhope.com/overview.htm

BCS2233 OOP: Assignment 2

Write an algorithm and java program for each of the following:-

1. Write an algorithm (pseudocode or flowchart) for a program that read 10 integers. Find the maximum and minimum number among the 10 (hint: use selection statements together with looping statements).

2. (Counting positive and negative numbers and computing the average of numbers) Write a program that reads an unspecified number of integers, determines how many positive and negative values have been read, and computes the total and average of the input values. Your program ends with the input 0. Display the average as a floating-point number. (For example, if you entered 1, 2, and 0, the average should be 1.5.)

BCS2233 OOP: Contoh 'Test 1'

1.  Response to the following statements by circling either T (TRUE) or F (FALSE). [10M]

        I.            Java enables users to develop and deploy applications on the Internet for servers, desktop computers, and small hand-held devices.( T / F)

      II.            Java is one of language that support object oriented programming. ( T / F)

    III.            Object-oriented programming (OOP) is a popular programming approach that is replacing traditional procedural programming techniques. ( T / F)

    IV.            Reserved words or keywords are words that have a specific meaning to the compiler and cannot be used for other purposes in the program. ( T / F)

      V.            System.out.println is one of the pre-defined methods in Java. ( T / F)

    VI.            The main method looks like this: ( T / F)

	public static void main(String[] args) {   // Statements; }

 

  VII.            An identifier is a sequence of characters that consist of letters, digits, underscores (_), and dollar signs ($).( T / F)

VIII.            An identifier must start with a letter, an underscore (_), or a dollar sign ($). It cannot start with a digit. ( T / F)

    IX.            An identifier in java can be of any length. ( T / F)

      X.            Logic Errors Produces incorrect result. ( T / F)

2. Match the following Statement / Name to its description. [7M]

No	Statements		Description
I.	x = 1;		Constants
II.	int x = 1;		Addition
III.	double radius;		Declaring and Initializing
IV.	final int SIZE = 3;		Multiplication
V.	+		Assignment Statements
VI.	*		Remainder
VII.	%		Declaring Variables

3. Give a brief explanation for the following questions.

         I.            What is debugging? [2 marks]

       II.            What is the difference between a constant and a variable? [2 marks]

     III.            Can Java run on any machine? What is needed to run Java on a computer? [4 marks]

     IV.            Explain the Java keywords. List any five Java keywords. [4 marks]

       V.            What is the Java source filename extension, and what is the Java bytecode filename extension?

4. Evaluate the following expressions: [3 marks]

                    I.            10 + 3 / 2

                  II.            3 * 3 + 3 % 2

                III.            3 + 2 / 2 + -2 * 4

5. Evaluate the following boolean expressions.

 [5 marks]

username=1001;

password = 234;

EXAMPLE  if(username==1001)                                 TRUE

                                 I.            if(password==234)

                               II.            if((username==1001) &&(password==234))

                             III.            if((username==1001)&&(password==789))

                             IV.            if((username==1001)||(password==789))

                               V.            if! (username==1001)

EXAMPLE   Write a for statement to print integer 1 to 20.

int I;

For (i=1; i<=10; i++)

System.out.Println(i);

I.                    Write a for statement to print integer 50 to 60. (3 marks)

II.                  Write a for statement to print the following output. (3 marks)

2                   4            6              8              10

EXAMPLE   Write a while statement to add numbers 11 through 20.

int sum =0;

int counter = 11;

while (counter <=20)

{

sum = sum + counter;

counter++;

}

III.                Write a while statement to add ODD numbers 11 through 10. [5M]

IV.                Write a while statement to continuously read in integers and stop when a negative number is entered.  [5 marks]

8. (Counting positive) Write an algorithm (pseudocode or flowchart)  and java  program that reads an unspecified number of integers, determines how many positive have been. Your program ends with the input 0.

BCS2233 OOP: Week 8 BCNS

Write a java program for the following flowchart. Use for and while (in desperate section) to demonstrates your understanding.

DCT1093 OOP: Markah Quiz1,2,3, Assignment1,2,3 dan Test (yg tertinggi) : UPDATED 26 MAC

Sebarang kesilapan pada markah ini sila maklumkan saya.

No.	Matric No	QUIZ 1  (15M) 18/12/14	QUIZ 2 (10M) 5/2/14	QUIZ 3 (5M) 12/3/15	QUIZ  (10%)	Assgmt 1 (65M)	Assgmt 2 (15M)	Assgmt 2 (interview)	Asgmt 3 (20)	ASGMT (30%)	TEST 1 (20%)	CARRY MARKS (60%)
1	14A01029
2	14A05001	12		0	4.0	37	6	2	18	18.9	11.8	34.7
3	14A05002	11	3	5	6.3	61	13	2	20	28.8	9.4	44.5
4	14A05003	14	L	4	6.0	34	10	2	20	19.8	10.4	36.2
5	14A05007		L	5	1.7	61	15	0	20	28.8	9.6	40.1
6	14A05012	12	10	3	8.3	56	5	7	20	26.4	18.0	52.8
7	14A05013				0.0					0	0.0	0.0
8	14A05014		L		0.0	56	5			18.3	11.1	29.4
9	14A05015	14	L	4	6.0	34	10	2	20	19.8	9.8	35.6
10	14A05016	14	9	5	9.3	61	13	2	20	28.8	16.2	54.3
11	14A05018	13	3	0	5.3	37	6	2	18	18.9	10.4	34.6
12	14A05019	12	L	0	4.0	38	9	3	20	21	9.6	34.6
13	14A05022	12	L	4	5.3	54	14	1	20	26.7	9.3	41.3
14	14A05023	12	L	0	4.0	37	6	2	18	18.9	9.8	32.7
15	14A05024	13	L	4	5.7	51	14	1	20	25.8	11.1	42.5
16	14A05026	12	L	5	5.7	58	15	0	20	27.9	16.8	50.4
17	14A05029	14	L	4	6.0	34	10	2	20	19.8	12.1	37.9
18	14A05030	11	3	5	6.3	61	13	2	20	28.8	14.3	49.4
19	14A05033	13	L	4	5.7	34	10	2	20	19.8	11.8	37.3
20	14A05036	12	L	2	4.7	51	14	1	20	25.8	10.0	40.5
21	14A05041		L	2	0.7	38	9	3	20	21	9.6	31.3
22	14A05042				0.0					0	0.0	0.0
23	14A05045	13	9	5	9.0	61	13	2	20	28.8	11.1	48.9
24	14A05046	14	3	0	5.7	37	6	2	18	18.9	11.1	35.6
25	14A05047	13	L	4	5.7	38	9	3	20	21	14.3	41.0
26	14A05048	12	L	1	4.3	47	9	3	20	23.7	10.4	38.4
27	14A05051				0.0					0	0.0	0.0
28	14A05054	11	L	5	5.3	56	15	0	20	27.3	14.3	46.9
29	14A05055	13	L	2	5.0	39	5	2	20	19.8	10.4	35.2
30	14A05059	12	L	2	4.7	39	5	2	20	19.8	16.1	40.5
31	14A05061	12	L	2	4.7	39	5	2	20	19.8	12.1	36.6
32	14A05062	11	L	5	5.3	58	15	0	20	27.9	16.4	49.7
33	14A05063	11	L	2	4.3	39	5	2	20	19.8	14.6	38.8
34	14A05067	12	L	2	4.7	39	5	2	20	19.8	10.4	34.8
35	14A05068	12	10	3	8.3	59	5	7	20	27.3	17.9	53.5
36	14A05069				0.0					0	0.0	0.0
37	14A05070	11	L	2	4.3	40	9	3	20	21.6	10.6	36.6
38	14A05071	11	L	4	5.0	34	10	2	20	19.8	7.7	32.5
39	14A05072	14	L	3	5.7	56	14	1	20	27.3	6.8	39.8
40	14A05074				0.0					0	0.0	0.0
41	14A05076	12	L	0	4.0	37	6	2	18	18.9	12.1	35.0
42	14A08016				0.0					0	0.0	0.0
43	14A09068	10	L	3	4.3	56	5	7	20	26.4	17.1	47.9
44	14A12008	12	3	4	6.3	47	14	1	20	24.6	12.9	43.8