How to print the sum along with the series

Question

1.00/5 (3 votes)

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Print the following as output

Output:
1+2+3+4+5=15

What I have tried:

Java

sum=0;
int n,n1; 
sum=sum+(n+n1);
{
System.out.println(sum);
}

Posted 31-Jan-20 4:22am

Yaswanth Kummar

Updated 4-Feb-20 14:38pm

Patrice T

v3

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Comments

phil.o 31-Jan-20 10:24am

You forgot to tell what you have tried, and what you are having troubles with.

Yaswanth Kummar 31-Jan-20 10:36am

Int n1,n2;
Sum=0;
Sum=sum+(-n1+n2)
{
System.out.println(sum);
}

But i want the output along with the series

2 solutions

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OriginalGriff · Answer 1 · 2020-01-31T04:42:00

First off, you are goign to need to store the series somewhere, and individual variables - as you show with n1 and n2 in your sample - aren't going to help.
I'd suggest that you look at creating an array of values instead of individual variables.

You can then set up a loop to process each value.
Before the loop, set the sum to zero, and create a string variable containing an empty string "" - call it separator.
Inside the loop, add the value to the sum, then print separator and the value. Then set separator to "+".
After the loop, print "=" and the sum

But this is your homework, so I'll give you no code!

Patrice T · Answer 2 · 2020-02-04T14:38:00

Solution 2

Quote:
How to print the sum along with the series

Your code is nowhere near what you want it to do. So o,ly the print part.
By using System.out.println you ensure that you will print only 1 thing per line. You should try System.out.print to avoid a new line after each part to print.

Posted 4-Feb-20 14:38pm