Question: Exception in thread main java.lang.ClassCastException: class TwoDTree$TwoDTreeNodeX cannot be cast to class TwoDTree$TwoDTreeNodeY ( TwoDTree$TwoDTreeNodeX and TwoDTree$TwoDTreeNodeY are in unnamed module of loader 'app' )

Exception in thread "main" java.lang.ClassCastException: class TwoDTree$TwoDTreeNodeX cannot be cast to class TwoDTree$TwoDTreeNodeY

(

TwoDTree$TwoDTreeNodeX and TwoDTree$TwoDTreeNodeY are in unnamed module of loader 'app'

)

at TwoDTree$TwoDTreeNodeY.setChild

(

TwoDTree

.

java:

79)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.buildTree

(

TwoDTree

.

java:

113)

at TwoDTree.

(

TwoDTree

.

java:

93)

at TwoDTree.main

(

TwoDTree

.

java:

245)

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