Question

Java questions

Part 1

Express the code fragment shown below using only a for loop.

int n = 0;

while (n <= 100)

{

int sum = sum + n;

n = n + 1;

System.out.println (sum);

}

Part 2

Use a loop structure to determine and print all positive integers between 1 and 100 that are divisible (evenly) by 5 and 8

Answer 1

PART 1:

The code fragment in a for loop can be expressed as -

int n ;

for(n=0;n<=100;n=n+1)

{

int sum = sum + n;

System.out.println (sum);

}

PART 2:

//Required java code with loop structure

class divisibility{
    
    // Result function with N
    static void result(int N)
    {    
        // iterating from 1 to N
        for (int num = 1; num <= N; num++) //using loop structure
        {    
            if (num % 5 == 0 && num % 8 == 0)
                System.out.print(num + " "); //printing output
        }
    }
     
    // Driver program
    public static void main(String []args)
    {
       
        int N = 100;
         
       
        result(N); // Calling function
    }
}

Please refer to the screenshot of the code to understand the indentation of the code

{ 1. class divisibility{ 2 3 // Result function with N 4 static void result(int N) 5 6 // iterating from 1 to N 7 for (int num = 1; num <= N; num++) //using Loop structure 8. { 9 if (num % 5 == 0 && num % 8 0) 10 System.out.print(num + " "); //printing output 11 } 12 } // Driver program public static void main(String []args) { 13 14 15 16 17 18 19 20 21 22 23 }| int N 100; result(N); // Calling function }

//OUTPUT:

ostdout copy 40 80

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