Modify the traversal methods from Section 10.2 to include parentheses. For example, an invocation of to String In order() on (the root of) the tree in Figure 10–4 should return the String...

Modify the traversal methods from Section 10.2 to include parentheses. For example, an invocation of to String In order() on (the root of) the tree in Figure 10–4 should return the String "((G((K)E(L)))A(((F)B)H((C(J))I(D))))"

Figure 10–4