interface - Object class, java API -

when implement queue interface, requires me implement abstract methods within interface. however, methods has input variable of type object. refer to, , possible change string type or other primitive type in java? because, example, in abstract method:

import java.util.collection;  import java.util.iterator;  import java.util.queue;    public class myqueue implements queue {        @override      public boolean add(object e) {          throw new unsupportedoperationexception("not supported yet."); /*inserts specified           element queue if possible without violating           capacity restrictions, returning true upon success , throwing illegalstateexception          if no space available.          */      }        }

when start implement method make own queue class input of string type instead of object type, tells me implement original abstract method again! can see in following snippest:

@override public boolean add(string name) {     boolean result = true;      if (rear == maxsize - 1) {         result = false;         throw new illegalstateexception("there no enough space.");     } else {         names[++rear] = name;         front = 0;     }      return result; } 

queue<e> generic interface. means has type parameter e.

if write

class myqueue<e> implements queue<e> {     ... } 

then required override add(e e), not add(object e). should write.

if write

class mystringqueue implements queue<string> {     ... } 

then required override add(string e). should write if implementation works strings.

if write

class myqueue implements queue {     ... } 

then forced override add(object e). should not use raw type queue without type parameter.

the easiest way implement queue make class extend abstractqueue<e> because of hard work done you.