MOVE CORRESPONDING
Say you had 2 classes in C#, which had some fields in common, for example, class A has Name, Age, and Sex, plus some other fields... class B has those same 3 fields, plus some others of its own. The only way to copy the fields would be:
a.Name = b.Name;
a.Age = b.Age;
a.Sex = b.Sex;
In COBOL, you just write:
MOVE CORRESPONDING A TO B
