一个list的填充类

public void test2For(){
List aList = new ArrayList();
List bList = new ArrayList();
bList.add("aa");
bList.add("ee");
bList.add("cc");
for(int n=0; n<bList.size(); n++){
System.out.println(n + ":" + bList.get(n));
}
String[] str = {"ee","dd","cc","bb","aa"};
System.out.println("str.length:" + str.length);
for(int i=0; i<str.length; i++){
boolean flag = false;
for(int j=0; j<bList.size()&& !flag; j++){
if(str[i].equals(bList.get(j))){
aList.add(bList.get(j));
bList.remove(j);
flag = true;
}
}
if(!flag) aList.add("");
}

for(int k=0; k<aList.size(); k++){
System.out.println(k + ":" + aList.get(k));
}
}