Whats is global is in salesforce?

Apex allows you to use the private, protected, public, and global access modifiers when defining methods and variables.

While triggers and anonymous blocks can also use these access modifiers, they are not as useful in smaller portions of Apex. For example, declaring a method as global in an anonymous block does not enable you to call it from outside of that code.

• This reply was modified 5 years, 8 months ago by  MOHIT.

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https://www.appseconnect.com/global-variables-in-salesforce-all-you-need-to-know/