chap indexing ( (bfigure deleting the record with key value from the -tree of figure via collapsing siblings (athe two leftmost leaf nodes merge together to form single leaf unfortunatelythe parent node now has only one child (bbecause the left subtree has spare leaf nodethat node is passed to the right subtree the placeholder values of the root and the right internal node are updated to reflect the changes value moves to the rootand old root value moves to the rightmost internal node /*delete record with the given key valueand return true if the root underflows *private boolean removehelp(bpnode rtkey kint currec binaryle(rt keys()rt numrecs() )if (rt isleaf()if (((bpleaf)rtkeys()[currec=kreturn ((bpleaf)rtdelete(currec)else return falseelse /process internal node if (removehelp(((bpinternal)rtpointers(currec) )/child will merge if necessary return ((bpinternal)rtunderflow(currec)else return falsefigure java-like pseudocode for the -tree delete algorithm deletion process figure shows java-like pseudocode for the -tree delete algorithm the -tree requires that all nodes be at least half full (except for the rootthusthe storage utilization must be at least this is satisfactory for many implementationsbut note that keeping nodes fuller will result both in less space