JAVA doesn’t have the concept of pointer. In order to deal with complex data collection structure, a high level data structure called “Collection framework” is required. However the framework keeps very physical concepts like tree, hashed table, or linked list. Programmer must deal with those lew-level data structures without pointers. It looks to me it’s a half-way abstraction. If I must deal with those low level data structures, I prefer to use C. If I want to stay JAVA without pointers, I wished a high level abstraction of collection which is different from today’s Java.