External Interfaces/API

Handling Data Returned from a Java Method

In many cases, data returned from Java is incompatible with the data types operated on within MATLAB. When this is the case, MATLAB converts the returned value to a data type native to the MATLAB language. This section describes the conversion performed on the various data types that can be returned from a call to a Java method.

This section addresses the following topics:

• Conversion of Java Return Data
• Built-In Data Types
• Java Objects
• Converting Objects to MATLAB Data Types

Conversion of Java Return Data

The following table lists Java return types and the resulting MATLAB types. For some Java base return types, MATLAB treats scalar and array returns differently, as described following the table.

Table 5-3: Conversion of Java Types to MATLAB Types  

Java Return Type	If Scalar Return, Resulting MATLAB Type	If Array Return, Resulting MATLAB Type
boolean	double (logical)	double (logical)
byte	double	int8
short	double	int16
int	double	int32
long	double	double
float	double	single
double	double	double
char	char	char

Passing Data to Overloaded Methods

Built-In Data Types