Note that the following solutions are made in Python 3.x

CLI Step 1

1. Print a multiplication table.

Solution - JAVA

class MultiplicationTables 
{ 
	public static void main (String args[]) 
	{ 
		for (int i = 2; i < 6; i++) 
		{ 
			for (int j = 0; j < 10; j++) 
			{
				System.out.print(i + " X " + j + " = "+ (i * j)); 
			}
			System.out.println (" "); 
		}
	}
}

Solution - Python

# loop for timestables of 7, 8, 9
for i in range(7,10):
    print ("Multiplication table of " + str(i) + " is presented below:")
    # loop to iterate 10 times
    for j in range(1,11):
       print(i,'x',j,'=',i*j) 

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2. Print a multiplication table as shown below.

0
0 2
0 3 6
0 4 8 12
0 5 10 15 20
0 6 12 18 24 30
0 7 14 21 28 35 42

Solution - JAVA

class MultiplicationTablesTriangle 
{ 
	public static void main (String args[]) 
	{ 
		for (int i = 0; i < 8; i++) 
		{ 
			for (int j = 0; j < i; j++) 
			{
				System.out.print(" "+ (i * j)); 
			}
			System.out.println (" "); 
		}
	}
}

Solution - Python

# loop to make triangle
for i in range(1,8):
    print('') # create a new line
    # loop to iterate i times
    for j in range(0,i):
       print(' ',i*j, end='') 

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 3. Write a program to convert 69 Fahrenheit to Centigrade.

Solution - JAVA

class F2C
{ 
	public static void main (String args[]) 
	{ 
		float centi; 
	 	float fht = 69; 
		centi = (fht - 32) * 5/9; 
 		System.out.println ("The centigrade equivalent of 69F is " + centi + "C" ); 
	}
}

Solution - Python

Celsius = (69 - 32) * 5.0/9.0
print ("Temperature: 69 Fahrenheit = ", Celsius, " C") 

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4. Write a program to convert 69 Centigrade to Fahrenheit.

Solution - JAVA

class C2F
{ 
	public static void main (String args[]) 
	{ 
		float centi = 69; 
	 	float fht; 
		fht = centi * 9/5 - 32; 
 		System.out.println ("The Fahrenheit equivalent of 69C is " + fht + "F" ); 
	}
}

Solution - Python

Fahrenheit = 9.0/5.0 * 69 + 32
print ("Temperature: 69 Celsius = ", Fahrenheit, " F") 

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5. Write a program to calculate the factorial of 10.

Solution - Java using for loop

public class Factorial 
{
   public static void main(String args[])
   {
        int n, c, fact = 1;
        n = 10;
        for ( c = 2 ; c <= n ; c++ )
        {
            fact = fact*c;
        }
        System.out.println("Factorial of "+n+" is = "+fact);
   }
}

Solution - Java using recursive calling

public class Factorial 
{
     public static void main(String args[])
     {
       Calculation obj_one = new Calculation();
       int a = obj_one.fact(4);
       System.out.println("The factorial of the number is : " + a);
     }
}
class Calculation
{
    int fact(int n)
    {
        int result;

       if(n==1)
         return 1;

       result = fact(n-1) * n;
       return result;
    }
}

 

Solution - Python

Using for loop

def factorial(x):
    factResult = 1
    for i in xrange(2, x + 1):
        factResult *= i
    return factResult
print (factorial(10))

Solution - Python

Using while loop

def factorial(n):
    factResult = 1
    while n >= 1:
        factResult = factResult * n
        n = n - 1
    return factResult
print (factorial(10))

Solution - Python

Another solution using math. 

 

import math
print (math.factorial(10))

Solution - Python

Another solution using recursive calling of the function. 

 

def factorial(n):
    if n == 0:
        return 1
    else:
        return n * factorial(n-1)
print (factorial(10))

---

 

9. Write a program to get the following output. 

^^^^^
#####
^^^^^
#####
^^^^^

Solution - Java 

public class HashCaret 
{
    public static void main(String[] args) 
    {
        int row = 5, column;
        while (row >= 1) 
        {
            column = 1;
            while (column <= 5) 
            {
                System.out.print(row % 2 == 1 ? "*" : "#");
                ++column;
            }
            --row;
            System.out.println();
        }
    }
}

Solution - Python 3.4 and 2.7

for i in range(1,6):
    if i%2:
        print("#####")
    else:
        print("^^^^^")