如何替换LinkedHashMap中特定键的值

Question

我想替换LinkedHashMap中特定键的值.

例如初始条件..

"key1" -> "value1"
"key2" -> "value2"
"key3" -> "value3"
"key4" -> "value4"
"key5" -> "value5"

我想期待结果......

"key1" -> "value1"
"key2" -> "value8"
"key3" -> "value3"
"key4" -> "value6"
"key5" -> "value5"

Answer 1

您为该键添加了一个新值:

map.put("key2","value8");
map.put("key4","value6");

请注意,因为LinkedHashMap更改现有键的值不会更改迭代顺序Map(这是键首次插入Map的顺序).