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Call Java constructor on Event Dispatch Thread (EDT)


  • JavaObj = javaObjectEDT(ClassName,x1,...,xN)



JavaObj = javaObjectEDT(ClassName,x1,...,xN) returns Java® object array, JavaObj, created from the EDT by the Java constructor for the class with the signature matching the arguments x1,...,xN.


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Construct Java Object Array from the EDT

f = javaObjectEDT('javax.swing.JFrame','New Title');

Call Method on Java Object

Create a JOptionPane on the EDT.

optPane = javaObjectEDT('javax.swing.JOptionPane');

Call the createDialog method on the EDT.

dlg = optPane.createDialog([],'Sample Dialog');

Input Arguments

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ClassName — Name of Java classcharacter vector

Name of Java class, specified as a character vector.

Data Types: char

x1,...,xN — Java constructor input argumentsany type

Java constructor input arguments, 1 through N (if any), required by ClassName, specified by any type. The class constructor argument list specifies the argument type.

More About

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The EDT is the Event Dispatch Thread, used in Java.


  • MATLAB® calls methods on JavaObj from the EDT.

  • Static methods on the specified class or Java object run on the MATLAB thread unless called using the javaMethodEDT function.

Introduced in R2009a

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