User`s manual

5 Calling Java from MATLAB
5-56
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