Dynamic object viewers for data structures

Authors:
James H. Cross, II;T. Dean Hendrix;Jhilmil Jain;Larry A. Barowski
Affiliations:
Auburn University, AL;Auburn University, AL;Auburn University, AL;Auburn University, AL
Venue:
Proceedings of the 38th SIGCSE technical symposium on Computer science education
Year:
2007

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Abstract

The jGRASP lightweight IDE has been extended to provide object viewers that automatically generate dynamic, state-based visualizations of data structures in Java. These viewers provide multiple synchronized visualizations of data structures as the user steps through the source code in either debug or workbench mode. This tight integration in a lightweight IDE provides a unique and promising environment for learning data structures. Initial classroom use has demonstrated the object viewers' potential as an aid to students who are learning to write and modify classes representing data structures. Recently completed controlled experiments with CS2 students indicate that these viewers can have a significant positive impact on student performance.