Question

用java 怎样去掉list集合里面的字符串中所有的逗号

例如
现在list集合里面得值打印出来是[a,b,c,d,e,f,g,h,i,j,k,l,m,n]
我想要的结果是 abcdefghijklmn
在java程序中应该怎么实现..望高手尽快回答 我是菜鸟.希望能详细点

Answer 1

import java.util.*;
public class A
{
public static void main(String[] args)
{
List list=new ArrayList();
list.add("a");
list.add(",");
list.add("b");
list.add(",");
list.add("c");
list.add(",");
list.add("d");
list.add(",");
list.add("e");
for(int i=0;i<list.size();i++)
{
if(list.get(i).equals(","))
list.remove(",");
}
Iterator it=list.iterator();
while(it.hasNext())
{
System.out.print(it.next());
}
}
}

Answer 2

public void printList(List l){
for(int i=0,max=l.size();i<max;i++){
System.out.print(l.get(i));
}
}

用这个函数打印吧

Answer 3

String substring = userIds.substring(1, userIds.length() - 1);
String[] split = substring.split(",");
String trim = "";
for (String result:split) {
String substring1 = result.substring(1, result.length() - 1);
trim = trim + substring1;
System.out.println(trim)
}

Answer 4

trim()