1_0==10 ?

Question

System.out.print (1_0==10);
// why it is true?

Answer 1

Because 1_0 is 10.
Underscore just separates digits so you can read numbers more easily.
x= 1000000 is not so easy to read, x= 1_000_000 now you can easily see that x is one million.

Answer 2

It's a type of representation of numbers, used in some scientific notations of numbers..
The compiler just ingore _ in between numbers.. So it is true according to JVM.

Edit: David Yan for more information
See thses.. Saying added feature for improve readability...
https://stackoverflow.com/questions/19806632/how-numeric-literal-with-underscore-works-in-java-and-why-it-was-added-as-part-o

https://www.google.com/amp/s/www.geeksforgeeks.org/g-fact-45-using-underscore-in-numeric-literals/amp/

Answer 3

Asked before
https://www.sololearn.com/Discuss/1873019/?ref=app