JavaScript

1.  Print Mathematical Tables from 3 to 20 by reading from table.txt in D:\\ directory Try changing table.txt to have 5, 99 and it should print accordingly
Also, spool the result to out.txt file in the same directory
Also, create a new directory called Tables and store the output file here
Also, spool each table output to separate files - 3.txt, 4.txt, 5.txt etc
Also, take the parameter 3 and 20 from console and produce same result.

3 * 1 = 3
3 * 2 = 6

3 * 10 = 30


4 * 1 = 4
4 * 2 = 8


20 * 1 = 20
20 * 2 = 40 

2.  School Clock is showing 9 am. Compute the angle between the Hour hand and the Minute hand. It should show Time: Angle in Degrees from 9:00 am to 8:55 pm with a spacing of 5 minutes.
Clues
1) What is the exact angle between Hour Hand and Minute Hand at 3 pm ?
2) What is the exact angle between Hour Hand and Minute Hand at 3:05 pm ?
3) What is the exact angle between Hour Hand and Minute Hand at 3:10 pm ?
4) What is the exact angle between Hour Hand and Minute Hand at 3:15 pm ?

3.  Write a program to read each line of file inConvert.txt and write the equivalent reverse conversion into outConvert.txt

 Example 1
If input is 

1 metre = 100 com, 
                 
then output should be

1 metre = 100 cm
1 cm = 0.01 metre

Example 2

If input is
8 kilometres = 5 miles,

then output should be

1 kilometer = (5/8) miles.
1 mile =  (8/5) kilometres

Next, take input with 2 parameters (Unit and Quantity) and print the conversion on console

Eg.  
Pounds
5
should give,   5 Pounds = ??? kgs

4.  Andaman Prisoner Problem
There are 100 prison cells in a row. All cells are locked Jailer is given permission by the Prime Minister of India to release any number of prisoners. In Round 1, Jailer opens all the doors. In Round 2, he closes every alternate door (2, 4, 6...). In Round 3, every third door (3, 6, 9,....) if Door is Open,, he closes it. If Door is Closed, he opens it. In Round 4, every fourth door (4, 8, 12..), if Door is open,, he closes it. If Door is Closed, he opens it. He does this for 100 Rounds. At the end, who are the lucky prisoners ?
Clue:
1. First, take a paper and pencil and solve this manually for 10 prison doors and 10 rounds
2. Before writing nested For Loops, first write 2 or 3 blocks of code manually, make sure that the program is doing what you want it to do, then convert this into a For Loop carefully without disturbing the code that is doing the job.
3. First get the full design in your mind first, before you start using the computer. ie. sit away from the computer, visualize the
program mentally, after the entire step by step instructions are clear in your mind, then sit on the computer.

5.  Gold Medal
There are 26 students in a class who have scored the following marks in 10th Std as per attached file Marks.txt (Name, Gender, RollNo....).Write a Program to read the contents of the file. Please print the Gold Medalist (overall top scorer) and individual Topper in each subject along with the respective marks.

 Amar,M,E80BD46CS0001,English:74,Maths:90,Physics:86,Chemistry:78,Biology:60,PASS
Babu,M,E80BD46CS0002,English:76,Maths:91,Physics:87,Chemistry:70,Biology:70,PASS
Charles,M,E80BD46CS0003,English:78,Maths:92,Physics:88,Chemistry:73,Biology:80,PASS
David,M,E80BD46CS0004,English:80,Maths:93,Physics:89,Chemistry:76,Biology:90,PASS
Ekalavya,M,E80BD46CS0005,English:82,Maths:94,Physics:90,Chemistry:79,Biology:100,PASS
Fabin,M,E80BD46CS0006,English:84,Maths:95,Physics:91,Chemistry:82,Biology:90,PASS
Govind,M,E80BD46CS0007,English:48,Maths:96,Physics:92,Chemistry:85,Biology:80,PASS
Harnish,M,E80BD46CS0008,English:56,Maths:97,Physics:93,Chemistry:88,Biology:70,PASS
Irene,F,E80BD46CS0009,English:64,Maths:98,Physics:95,Chemistry:91,Biology:60,PASS
James,M,E80BD46CS0010,English:72,Maths:99,Physics:96,Chemistry:92,Biology:70,PASS
Kamaraj,M,E80BD46CS0011,English:80,Maths:100,Physics:97,Chemistry:93,Biology:80,PASS
Latha,F,E80BD46CS00012,English:88,Maths:99,Physics:98,Chemistry:94,Biology:90,PASS
Manish,M,E80BD46CS0013,English:70,Maths:98,Physics:99,Chemistry:49,Biology:100,PASS
Nagesh,M,E80BD46CS0014,English:76,Maths:97,Physics:87,Chemistry:59,Biology:90,PASS
Omar,M,E80BD46CS0015,English:82,Maths:96,Physics:89,Chemistry:69,Biology:80,PASS
Padma,F,E80BD46CS0016,English:88,Maths:95,Physics:91,Chemistry:79,Biology:70,PASS
Queenie,F,E80BD46CS0017,English:60,Maths:94,Physics:93,Chemistry:89,Biology:75,PASS
Roopa,F,E80BD46CS0018,English:68,Maths:93,Physics:95,Chemistry:79,Biology:80,PASS
Sundar,M,E80BD46CS0019,English:77,Maths:92,Physics:97,Chemistry:80,Biology:85,PASS
Tara,F,E80BD46CS0020,English:79,Maths:93,Physics:99,Chemistry:81,Biology:90,PASS
Ullas,M,E80BD46CS0021,English:75,Maths:94,Physics:87,Chemistry:82,Biology:95,PASS
Vasu,M,E80BD46CS0022,English:85,Maths:95,Physics:89,Chemistry:83,Biology:90,PASS
Wendy,F,E80BD46CS0023,English:65,Maths:96,Physics:91,Chemistry:84,Biology:85,PASS
Xero,M,E80BD46CS0024,English:25,Maths:98,Physics:93,Chemistry:85,Biology:80,PASS
Yasmin,F,E80BD46CS0025,English:75,Maths:100,Physics:95,Chemistry:86,Biology:85,PASS
Zafar,M,E80BD46CS0026,English:75,Maths:98,Physics:87,Chemistry:79,Biology:89,PASS