As my AP Computer Science teacher eloquently said:
"You can't let strangers touch your private parts"
Therefore, if data was not hidden, a client class can modify all the variables(given that it is not a final constant) by simply calling:
className.variableName = newWrongData;
By using special methods to access the variables, the class can change its internal implementation, without breaking compatibility with other classes that are already using it.
In Java, you hide data by declaring it private. In that case, it is not visible outside the class. When you do that, you should provide set and get methods (they can have any name, but starting them with "set" and "get" is a common coding standard). Example:
class Person
{
private String name;
void setName(parameterName) {name = parameterName;}
String getName() {return name;}
}
By hiding the data, you may later decide to change the implementation, without breaking compatibility with existing code that uses your class. It is general recommended to hide all class fields.
Encapsulation also implements data hiding in an object oriented programming design. By encapsulating various methods & data objects into a single class they can also be hidden from all the other classes. You can declare the variables and methods as private and that way you can hide the data from the other classes in the application.
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disadvantages in data manual processing
private
No. Logic should never go in a constructor; constructors should only be used to instantiate and initialize object data.
Data hiding is used method used in Object-Oriented programing to hide information within computer code
you should go in your basement and hide under a heavy object.
Data about other data is metadata.
Encapsulation also implements data hiding in an object oriented programming design. By encapsulating various methods & data objects into a single class they can also be hidden from all the other classes. You can declare the variables and methods as private and that way you can hide the data from the other classes in the application.
TableChartOutlineGrid
Acitex data object database
You can hide a column or row, so they do not appear or you can format the cell contents to be white instead of black (format cell contents to the same color as the cell background).
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The rdoConnection object is not connected to a data source?
Object Data Management Group was created in 1991.
Tables are the database objects that store data in a structured format within a relational database management system (RDBMS). Tables consist of rows and columns where the actual data is stored. Each row represents a record, and each column represents a field or attribute.
disadvantages in data manual processing