面试题,前辈们帮下忙

[zhen_yan2009]

凭记忆写的,应该没错

public class TestOne{

private String name;
private TestOne test;

public void setName(String name)
{
this.name = name;
}

public String getName()
{
return name;
}

public void setTest(TestOne test)
{
this.test = test;
}

public TestOne getTest()
{
return test;
}
}

public class TestTwo extends TestOne{

private ArrayList list;

public void setList(TestOne test)
{
list.add(test);
}

public ArrayList getList()
{
return list;
}
}

问题:取所有子节点的name属性;
求达人解答

[mucrea]

public String getName(TestTwo testTwo) {

String strName = "";
for(int i=0; i<testTwo.getList.size(); i++) {

if(null != testOne.getName())
{
strName += testOne.getName();
}
while(testOne.getTest() != null) {

strName += testOne.getTest().getName();
testOne = testOne.getTest().getTest();
}
}
}

[mucrea]

上面有些问题！做了如下修改
public String getName(TestTwo testTwo) {

String strName = "";
for(int i=0; i <testTwo.getList.size(); i++) {
TestOne testOne = testTwo.getList().get(i);
if(null != testOne.getName())
{
strName += testOne.getName();
}
while(testOne.getTest() != null) {

if(null != testOne.getTest().getName())
{
strName += testOne.getTest().getName();
}

testOne = testOne.getTest();
}
}
}