Question

this is to be solved using for loops in java​

Answer 1

Question 1:-

Write a program to print the sum of the series.

S=x^2 - x^4 + x^6 - x^8...N terms.

Program:-

class Program1

{

public static void main(String args[])

{

int n=10, x=5, a=2;

double s=0.0;

for(int i=1;i<=n;i++)

{

if(i%2==1)

s+=Math.pow(x, a);

else

s-=Math.pow(x, a);

a=a+2;

}

System.out.println("Sum of the series: "+s);

}

}

Question 2:-

Write a program to find the largest of the 10 numbers and also the sum of the numbers.

Program:-

Since, array declaration not allowed, I am declaring 10 variables.

class Program2

{

public static void main(String args[])

{

int a=1, b=2, c=3, d=4, e=5, f=6, a1=7, a2=8, a3=9, a4=10;

int max=Math.max(a, Math.max(b, Math.max(c, Math.max(d, Math.max(e, Math.max(f, Math.max(a1, Math.max(a2, Math.max(a3, a4)))))));

int s=a+b+c+d+e+f+a1+a2+a3+a4;

System.out.println("Largest Number is: "+max);

System.out.println("Sum of all the numbers is: "+s);

}

}

Question 3:-

Write a program to calculate the sum and product of its factors.

Program:-

class Program3

{

public static void main(String args[])

{

System.out.print("Enter a number: ");

int n=6;

int s=0,p=1;

for(int i=1;i<=n;i++)

{

if(n%i==0)

{

s+=i;

p*=i;

}

}

System.out.println("Sum of factors: "+s);

System.out.println("Product of factors is: "+p);

}

}

Answer 2

Answer:

above answers is all about correct