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Private access and package access are access levels in object-oriented programming that control the visibility of class members. 1. **Definition**: - Private access restricts the visibility of class members (variables, methods, etc.) to the class in which they are declared, making them accessible only within the same class. - Package access, also known as default access or package-private access, is the access level used when no access modifier is explicitly declared. Class members with package access are visible within the same package in which they are defined. 2. **Visibility**: - Class members with private access have the least visibility, as they are only accessible within the same class where they are declared. - Class members with package access are visible to all classes within the same package but are not visible to classes outside the package. Examples: - **Private Access**: ``` class MyClass { private int privateVar; private void privateMethod() { System.out.println("This is a private method"); } } ``` In this example, `privateVar` and `privateMethod` have private access and can only be accessed within the `MyClass` class. - **Package Access**: ``` class MyClass { int packageVar; void packageMethod() { System.out.println("This is a package-private method"); } } ``` In this example, `packageVar` and `packageMethod` have package access, as no access modifier is explicitly declared. They can be accessed from any class within the same package but not from classes outside the package.