# Heap Walking Preferences

The following preferences can be set using the Java > Debug > Heap Walking preference page.

These preferences allow count settings for Java 1.6 heap walking features to be changed.

Option | Description | Default
--- | --- | ---
Maximum instances to display | The maximum number of type instances to display using the all instances command. Entering zero will always show all of the instances of the selected type in the current VM | 100
Maximum references to display | The maximum number of type references to display using the all references command. Entering zero will always show all of the references to the selected type in the current VM | 100

### Related Concepts

Debugger
Java perspectives
Java views
Local debugging
Remote debugging

### Related Tasks

Launching a Java program
Running and debugging

### Related Reference

Detail Formatters Preferences
Installed JREs Preferences
Java Debug Preferences
Logical Structures Preferences
Primitive Display Preferences
Run/Debug Preferences
Step Filtering Preferences