如何得到一个List中元素最长的一个~~~~
List <String>   list   =   new   ArrayList <String> ();

如何把String长度最长的弄出来

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循环这个List在循环里面做判断
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楼上的方法可以考虑!
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遍历吧
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做循环吧
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String str = " ";
int max = 0;
for(String string : list)
{
max = Math.max(max,string.length());
if(max == string.length())
str = string;
}
System.out.println( "max length string is: " + str + ",length is: " + max);
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List <String> l = new ArrayList <String> ();
l.add( "ssd ");
l.add( "dsfsdsdd22dfsdfsdf ");
l.add( "werweewr " );
l.add( "dsfsdsdfsdfsdf ");
Collections.sort(l);
System.out.println(l.get(0));
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关注
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String str = " ";
int max = 0;
for(String string : list)
{
max = Math.max(max,string.length());
if(max == string.length())
str = string;
}
System.out.println( "max length string is: " + str + ",length is: " + max);

好好的调用什么Math.max()啊...
int length = str.length();
if (max < length) {
max = length
resultStr = str;
}