JAVA

java long

// long numbers are marked with an 'l' or 'L' in Java
long num1 = 15l;
Long num2 = 32L;
long num3 = 7L;
Long num4 = 64l;
// they are the 64bit version of int/Integer
// watch it: float are marked and not double types like here for int/long

Java long Keyword

long myNum = 15000000000L;
System.out.println(myNum);