摘要:
package com.example.test; import java.util.ArrayList; import java.util.Arrays; import java.util.HashMap; import java.util.HashSet; import java.util.Li 阅读全文
摘要:
1.list转set Set set = new HashSet(new ArrayList()); 2.set转list List list = new ArrayList(new HashSet()); 3.数组转为list List stooges = Arrays.asList("Larry 阅读全文