These are two system classes that handle Conversion of Time Stamps and time formats in ABAP programs. The class CL_ABAP_TSTMP is used for calculating time stamps. The class CL_ABAP_TIMEFM is available for establishing time formats and converting between different time formats.
The CL_ABAP_ITAB_UTILITIES class contains methods with which individual or all secondary table keys of an internal table can be explicitly updated. Otherwise the update takes place as a delayed or lazy update.System class CL_ABAP_ITAB_UTILITIES is used for speeding the internal table updation.
Here is some System classes and its methods that handle Mathematical Operations in ABAP. Class CL_ABAP_MATH contains methods and constants for operations with floating point numbers. Methods and operations with decimal floating point numbers Method GET_SCALE returns the scaling of a decimal floating point number. Method GET_NUMBER_OF_DIGITS returns the precision of a decimal floating point [...]
Here is some system classes that handle conversion of Characters and numbers in ABAP programs. CL_ABAP_CONV_IN_CE : Converting other formats to ABAP data objects (reading from a binary input stream). CL_ABAP_CONV_OUT_CE : Converting ABAP data objects to another format (writing to a binary output stream). CL_ABAP_CONV_X2X_CE : Converting data from one format to another (reading [...]
Here is some System Classes that can handle Character String Processing in ABAP Class CL_ABAP_STRING_UTILITIES contains methods for processing text strings. Class CL_ABAP_REGEX generates an object-oriented representation from a regular expression in a character-like field. Class CL_ABAP_MATCHER applies a regular expression generated using CL_ABAP_REGEX to either a character string or an internal table.
The RTTS ( Run Time Type Services) are implemented through a hierarchy of type classes that contain the methods for RTTC (Run Time Type Creation) and RTTI (Run Time Type Identification).The properties of the types are represented by the attributes of type objects. For each type there is exactly one type object. The attributes of [...]