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#include <iostream>
#include <conio.h>
#include <math.h>
 
using std::cout;
using std::cin; //rather than use namespace std
using std::endl;
 
int multiples(int a);
float squareroot (int a);
int sumdigits(int a, int sum);
int isprime(int a);
 
int a;
int sum=0;
int evenorodd;
int prime;
 
int main()
{
	cout << "Enter a number, enter -999 to end" << endl;
	cin >> a;
	while (a != -999)
	{
	int z=multiples(a);
	float q=squareroot(a);
 
	sum=sumdigits(a, sum);
	evenorodd=sum%2;
	prime=isprime(a);
 
	cout << "Your number is " << a << endl; //prints input
 
	//if statements to check function multiples output
	if (z == 1)
		{
			cout << "Your number is a multiple of 7" << endl;
		}
	if (z == 2)
		{
			cout << "Your number is a multiple of 11" << endl;
		}
	if (z == 3)
		{
			cout << "Your number is a multiple of 13" << endl;
		}
	if (z == 4)
		{
			cout << "Your number is not a multiple of 7, 11, or 13" << endl;
		}
 
	//if-else to check if number is negative, and to print function squareroots output
	if (q == 0)
		{
			cout << "you cannot take the square of a negative" << endl;
		}
	else
		{
			cout << "It's square root is " << q << endl;
		}
 
	//print function sumdigits output and checks whether it is odd or even
	if (evenorodd == 0)
		{
			cout << "the sum of it's digits is " << sum << " and the sum is even" << endl;
		}
	else
		{
			cout << "the sum of it's digits is " << sum << " and the sum is odd" << endl;
		}
 
	//prime number function 
	if (prime == 0)
		{
			cout << "The number is prime" << endl;
		}
	else
		{
			cout << "The number is prime" << endl;
		}
 
	// continues while loop
	cout << "Enter another number, enter -999 to end" << endl;
	cin >> a;
 
	}
	_getch();
	return 0;
 
}
 
int multiples(int a)// multiples function
{
	if (a == 0)
	{
		return 4;
	}
	if (a%7==0)
	{
		return 1;
	}
	if (a%11==0)
	{
		return 2;
	}
	if (a%13==0)
	{
		return 3;
	}
	else
		return 4;
}
 
float squareroot (int a) //square root function
{
	if (a < 0)
	{
		return 0;
	}
	else
	{
		float q = sqrt(a);
		return q;
	}
}
 
int sumdigits(int a, int sum) //sumDigits function
{    
	if (a== 0) //stop function
    {
        return sum;
    }
    else
    {
        sum = sum + a%10;  //add digits
		a= a/10;
        return sumdigits(a, sum); // returning sum for print
    }
}
 
 
int isprime(int a) //prime number test function
{
    int b = 2;
   while (b < a)
    {
        if (a % b == 0)
        {
            int prime = 0;
            return prime;
        }
 
        b++;
    }
    int prime = 1;
    return prime;
}

Main.java:2: error: illegal character: '#'
#include <iostream>
^
Main.java:2: error: class, interface, or enum expected
#include <iostream>
         ^
Main.java:3: error: illegal character: '#'
#include <conio.h>
^
Main.java:4: error: illegal character: '#'
#include <math.h>
^
Main.java:7: error: class, interface, or enum expected
using std::cin; //rather than use namespace std
^
Main.java:8: error: class, interface, or enum expected
using std::endl;
^
Main.java:10: error: class, interface, or enum expected
int multiples(int a);
^
Main.java:11: error: class, interface, or enum expected
float squareroot (int a);
^
Main.java:12: error: class, interface, or enum expected
int sumdigits(int a, int sum);
^
Main.java:13: error: class, interface, or enum expected
int isprime(int a);
^
Main.java:15: error: class, interface, or enum expected
int a;
^
Main.java:16: error: class, interface, or enum expected
int sum=0;
^
Main.java:17: error: class, interface, or enum expected
int evenorodd;
^
Main.java:18: error: class, interface, or enum expected
int prime;
^
Main.java:20: error: class, interface, or enum expected
int main()
^
Main.java:23: error: class, interface, or enum expected
	cin >> a;
	^
Main.java:24: error: class, interface, or enum expected
	while (a != -999)
	^
Main.java:27: error: class, interface, or enum expected
	float q=squareroot(a);
	^
Main.java:29: error: class, interface, or enum expected
	sum=sumdigits(a, sum);
	^
Main.java:30: error: class, interface, or enum expected
	evenorodd=sum%2;
	^
Main.java:31: error: class, interface, or enum expected
	prime=isprime(a);
	^
Main.java:33: error: class, interface, or enum expected
	cout << "Your number is " << a << endl; //prints input
	^
Main.java:36: error: class, interface, or enum expected
	if (z == 1)
	^
Main.java:39: error: class, interface, or enum expected
		}
		^
Main.java:43: error: class, interface, or enum expected
		}
		^
Main.java:47: error: class, interface, or enum expected
		}
		^
Main.java:51: error: class, interface, or enum expected
		}
		^
Main.java:57: error: class, interface, or enum expected
		}
		^
Main.java:61: error: class, interface, or enum expected
		}
		^
Main.java:67: error: class, interface, or enum expected
		}
		^
Main.java:71: error: class, interface, or enum expected
		}
		^
Main.java:77: error: class, interface, or enum expected
		}
		^
Main.java:81: error: class, interface, or enum expected
		}
		^
Main.java:85: error: class, interface, or enum expected
	cin >> a;
	^
Main.java:87: error: class, interface, or enum expected
	}
	^
Main.java:89: error: class, interface, or enum expected
	return 0;
	^
Main.java:91: error: class, interface, or enum expected
}
^
Main.java:98: error: class, interface, or enum expected
	}
	^
Main.java:102: error: class, interface, or enum expected
	}
	^
Main.java:106: error: class, interface, or enum expected
	}
	^
Main.java:110: error: class, interface, or enum expected
	}
	^
Main.java:113: error: class, interface, or enum expected
}
^
Main.java:120: error: class, interface, or enum expected
	}
	^
Main.java:124: error: class, interface, or enum expected
		return q;
		^
Main.java:125: error: class, interface, or enum expected
	}
	^
Main.java:133: error: class, interface, or enum expected
    }
    ^
Main.java:137: error: class, interface, or enum expected
		a= a/10;
		^
Main.java:138: error: class, interface, or enum expected
        return sumdigits(a, sum); // returning sum for print
        ^
Main.java:139: error: class, interface, or enum expected
    }
    ^
Main.java:146: error: class, interface, or enum expected
   while (b < a)
   ^
Main.java:151: error: class, interface, or enum expected
            return prime;
            ^
Main.java:152: error: class, interface, or enum expected
        }
        ^
Main.java:155: error: class, interface, or enum expected
    }
    ^
Main.java:157: error: class, interface, or enum expected
    return prime;
    ^
Main.java:158: error: class, interface, or enum expected
}
^
55 errors

Standard output is empty