Question

求问List <Object[]> 如何转换成 String []

Answer 1

刚刚开始学java,请多见谅.

", typeComp); List <String[]> row = new ArrayList(); String [] s = new String [datas.size()]; Iterator it = datas.iterator(); int i = 0; while(it.hasNext()){ row.add((String[])it.next()); s[i]=row.get(i)[0]; i++; } return s;问题补充：enet_java 写道toArray() 是返回集合中所有元素的数组，怎么可以返回String[]呢？", typeComp); List <Object[]> row = new ArrayList<Object[]>(); String [] s = new String [datas.size()]; Iterator<Object[]> it = datas.iterator(); int i = 0; while(it.hasNext()){ row.add(((Object[])it.next())); s[i]=(String)row.get(i)[0]; i++; } return s;