泛型相关的问题

[jinjiajie]

Map<String, RuntimeMonitor.ProcessCHeapInfo> gap = rt.getCHeap();
Iterator it = gap.entrySet().iterator();


就这么段代码，为什么第2行那里仍旧会提示 Iterator is a raw type.References to generic type Iterator<E>should be parameterized

...至今对泛形一头雾水，请各位大大指点一二

[shadao]

Map <String, RuntimeMonitor.ProcessCHeapInfo > gap = rt.getCHeap(); 
Iterator<RuntimeMonitor.ProcessCHeapInfo> it = gap.entrySet().iterator(); 

搞定

[jinjiajie]

能解释下为什么这么改么？

[jinjiajie]

而且....编译器还是报错...类型完全不匹配了...

[jinjiajie]

Multiple markers at this line
- Type mismatch: cannot convert from
Iterator<Map.Entry<String,RuntimeMonitor.ProcessCHeapInfo>> to
Iterator<RuntimeMonitor.ProcessCHeapInfo>
- Iterator is a raw type. References to generic type Iterator<E> should be
parameterized

错误信息

[reene2008]

Iterator <Map.Entry <String,RuntimeMonitor.ProcessCHeapInfo > > it = gap.entrySet().iterator();

[neptune0229]

Iterator <Entry <String,RuntimeMonitor.ProcessCHeapInfo > > = gap.entrySet().iterator();

[jinjiajie]

还是不行，头大了...

[shadao]

不好意思，弄错了 以为是values；原来你要pair

Map <String, RuntimeMonitor.ProcessCHeapInfo> gap = rt.getCHeap();
Set<Map.Entry<String, RuntimeMonitor.ProcessCHeapInfo>> sett = gap.entrySet();
for(Map.Entry<String, RuntimeMonitor.ProcessCHeapInfo> pair:sett){
pair.getKey();//the key;String
pair.getValue();//the value;RuntimeMonitor.ProcessCHeapInfo
}

[allenblade]

4楼的正解

[allenblade]

看错了....5楼

[jinjiajie]

可能是我的eclipce版本问题，5楼的写法我昨天就写了，但是ide还是提示有warning...虽然不影响机能，但是这次的改造就是要把warning全去了，头大ing。。。。

[lihaifeng0412]

顶下

[jinjiajie]

确定是eclipse 3.30的问题了....谢谢各位帮忙