simplecollection.java

一些简单的java初学者必学的东西,希望能对你有用.

public class SimpleCollection {
      private Object[] objArr;
       private int index=0;
       public SimpleCollection() {
           objArr = new Object[10];
         }
       public SimpleCollection(int capacity) {
             objArr = new Object[capacity];
          }
          public void add(Object o) {
             objArr[index]=0;
               index++;
           }
             public int getLength() {
               return index;
                }
           public Object get(int i) {
              return objArr[i];
             }
    }