set the property for single value string array data type using java

You can set a property as an Array the same way as other properties using the JCR API. You invoke the Node object;s setProperty method. 

Consider the following code:

 Node node = session.getNode("/content/dam/reports");

 javax.jcr.ValueFactory valueFactory = session.getValueFactory();

Node nodereport = session.getNode("/content/reports");

String[] colors ={"Red","Black","Orange","Blue"};

nodereport.setProperty("colors",colors);

When you run this code - you add a new property named colors to the /content/reports node -- as shown here:

[img]report.png[/img]

If you want to set a single value of the array -- you can do that too:

  nodereport.setProperty("colorssingle",colors[0]);

In this case -- singlecolor is assigned Red - and the data type of colorssingle is String -- not String[].