How is it possible ?..

Question

double sum=0;

for(int i=1;i<=10;i++)
sum+=1/i;

System.out.print(sum);

Answer 1

The result is 1.0 because you divide one integer (1) by another integer (i), so the decimal places are cut off and AFTER the cutting the result is casted to double.

Replace 1/i with 1.0/i and the result will be correct.

Answer 2

because the i. is an int and 1 is an int too
so the decimal part won't get saved
change ur code to. sum =1.0 /i ;

Answer 3

t y :)

Answer 4

You can either change 1 to 1.0, or you can cast it by adding (double) before 1.
The answer is 2.9289.. , if you want to round it to 2.93 use the following:
sum+= Math.round((1.0/i)*100.0)/100.0;

Good luck!
CA