Bom dia Pessoal,
To fazendo uma conexão JDBC no Mysql para retornar uma List pra um componente na minha parte de view.
Porém não sei usar o List em java direito.
Tenho que implementar os métodos do List assim:
[code]List listaRetorno = new List() {
public int size() {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean isEmpty() {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean contains(Object o) {
throw new UnsupportedOperationException("Not supported yet.");
}
public Iterator<String> iterator() {
throw new UnsupportedOperationException("Not supported yet.");
}
public Object[] toArray() {
throw new UnsupportedOperationException("Not supported yet.");
}
public <T> T[] toArray(T[] a) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean add(String e) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean remove(Object o) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean containsAll(Collection<?> c) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean addAll(Collection<? extends String> c) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean addAll(int index, Collection<? extends String> c) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean removeAll(Collection<?> c) {
throw new UnsupportedOperationException("Not supported yet.");
}
public boolean retainAll(Collection<?> c) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void clear() {
throw new UnsupportedOperationException("Not supported yet.");
}
public String get(int index) {
throw new UnsupportedOperationException("Not supported yet.");
}
public String set(int index, String element) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void add(int index, String element) {
throw new UnsupportedOperationException("Not supported yet.");
}
public String remove(int index) {
throw new UnsupportedOperationException("Not supported yet.");
}
public int indexOf(Object o) {
throw new UnsupportedOperationException("Not supported yet.");
}
public int lastIndexOf(Object o) {
throw new UnsupportedOperationException("Not supported yet.");
}
public ListIterator<String> listIterator() {
throw new UnsupportedOperationException("Not supported yet.");
}
public ListIterator<String> listIterator(int index) {
throw new UnsupportedOperationException("Not supported yet.");
}
public List<String> subList(int fromIndex, int toIndex) {
throw new UnsupportedOperationException("Not supported yet.");
}
};[/code]
Desse jeito da o seguinte erro:java.lang.UnsupportedOperationException: Not supported yet.
E se não implementar os métodos da esse erro:java.lang.NullPointerException.
Então como posso fazer isso???
Ta retornando certo so dados do banco!
Vlw