Let’s see program to find sum of first n numbers in java.
public class Example {
public static int sumOfNumbers(int number) {
int sum = 0;
for(int i = 1;i <= number;i++) {
sum = sum + i;
}
return sum;
}
public static void main(String[] args) {
System.out.println("The Sum Of first " +5+" Numbers is : " + sumOfNumbers(5));
}
}
Output is – The Sum Of first 5 Numbers is : 15