Question

write a program in java to input 50 numbers and display their sum​

Answer 1

public static void main(String[] commandLine) {

int total = IntStream.rangeClosed(10, 100)

.filter(i -> i % 2 == 0)

.sum();

System.out.println( String.format("The total is %d", total) );

} I think will work, if I’ve got it right.

IntStream.rangeClosed(10, 100) supplies all the integers between 10 and 100 inclusive as a stream

filter(i -> i % 2 == 0) creates a new stream, containing only the numbers where number mod 2 equals zero - even numbers

sum() handle adds up all the integers in this new stream and returns an int