题示代码的功能为:循环遍历输出Map当中的每一个元素。《插入代码》处应填入的代码是（ ）Map map=new HashMap(); map.put(“jessica”,100); map.put(“tom”,200); map.put(“den”,300); Set《插入代码1》 set =《插入代码2》; for (《插入代码3》 per : set) { System.out.println(per.getKey() + ":" + per.getValue()); } A: <Entry> map.keySet() Entry B: <Entry> map.entrySet() Entry C: <Map.Entry<String, Integer>> map.keySet() Map.Entry<String, Integer> D: <Map.Entry<String, Integer>> map.entrySet() Map.Entry<String, Integer>

题示代码的功能为:循环遍历输出Map当中的每一个元素 Mapmap=newHashMap();map.put(“jessica”,100);map.put(“tom”,200);map.put(“den”,300);Set位置①set=位置②;for(位置③per:set){System.out.println(per.getKey()+":"+per.getValue());}下列每个选项中分别填入上面三个位置，正确的是()。 A: <;Entry>;map.keySet()Entry B: <;Entry<;Integer,String>;>;map.entrySet()Entry C: <;Map.Entry<;String,Integer>;>;map.keySet()Map.Entry D: <;Map.Entry<;String,Integer>;>;map.entrySet()Map.Entry

题示代码的功能为:循环遍历输出Map当中的每一个元素。《插入代码》处应填入的代码是（ ）Map map=new HashMap(); map.put(“jessica”,100); map.put(“tom”,200); map.put(“den”,300); Set《插入代码1》 set =《插入代码2》; for (《插入代码3》 per : set) { System.out.println(per.getKey() + ":" + per.getValue()); } 未知类型：{'options': ['&#91;Entry&#93; map.keySet() Entry', '&#91;Entry&#93; map.entrySet() Entry', '&#91;Map.Entry<String, Integer&#93;> map.keySet() Map.Entry&#91;String, Integer&#93;', '&#91;Map.Entry<String, Integer&#93;> map.entrySet() Map.Entry&#91;String, Integer&#93;'], 'type': 102}

Map集合中存放的是&lt;key,value&gt;元素，添加一个新的元素的方法是add。 A: 正确 B: 错误

在使用MapReduce程序WordCount进行词频统计时，对于文本行“hello hadoop hello world”，经过WordCount程序的Map函数处理后直接输出的中间结果，应该是下面哪种形式： A: &lt;&quot;hello&quot;,1,1&gt;、&lt;&quot;hadoop&quot;,1&gt;和&lt;&quot;world&quot;,1&gt; B: &lt;&quot;hello&quot;,2&gt;、&lt;&quot;hadoop&quot;,1&gt;和&lt;&quot;world&quot;,1&gt; C: &lt;&quot;hello&quot;,&lt;1,1&gt;&gt;、&lt;&quot;hadoop&quot;,1&gt;和&lt;&quot;world&quot;,1&gt; D: &lt;&quot;hello&quot;,1&gt;、&lt;&quot;hello&quot;,1&gt;、&lt;&quot;hadoop&quot;,1&gt;和&lt;&quot;world&quot;,1&gt;

Free entry means that

contractual entry mode are including( ) and ( )

In MLA style, to create an entry for a source taken from an online database, we should begin with the appropriate form, and conclude the entry with _________________.

, in accounting, is a system of bookkeeping so named because every entry to an account requires a corresponding and opposite entry to a different account. T

What is meant by a prime entry record? A: An entry to the ledger accounts B: The initial recording of a transaction within the accounting system C: The recording of the debit side of a double entry D: The sum of the direct costs incurred during production