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import java.util.ArrayList; import java.util.Collections; import java.util.List; public class TestCollections { public static void main(String args[]) { //注意List是实现Collection接口的 List list = new ArrayList(); double array[] = { 112 , 111 , 23 , 456 , 231 }; for ( int i = 0 ; i < array.length; i++) { list.add( new Double(array[i])); } Collections.sort(list); for ( int i = 0 ; i < array.length; i++) { System.out.println(list.get(i)); } // 结果:23.0 111.0 112.0 231.0 456.0 } } |
Java中Collection和Collections的区别(引用自:http://www.cnblogs.com/dashi/p/3597937.html)
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原文地址:http://www.cnblogs.com/zhangmu126/p/5336541.html