ADDITIONAL SYSTEM INFORMATION :
Windows 10

A DESCRIPTION OF THE PROBLEM :
Compile time error not handled when "_" special character is used with Integer datatype


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create a class
Create the main method
Print 7_7 without double quotes just as the integer
Use if conditional statement to check if(77==7_7) and inside it print "Equal"
Use Else statement to check if it is not and inside it print "Not Equal"
Unexpectedly it prints 77 and and from if condition prints "true"






EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Compile Time Error
ACTUAL -
It prints 77 and is goes to If condition when executed with above STR prints Equal

---------- BEGIN SOURCE ----------
public class Oracle_Issue {

public static void main(String[] args) {

System.out.println(7_7);
if(77 == 7_7) {
System.out.println("Equal");
}
else {
System.out.println("Not Equal");
}
}
}
---------- END SOURCE ----------

FREQUENCY : always