CachedRowSet crs = CachedRowSetImpl(); crs.setPageSize(100); crs.execute(conHandle); while(crs.nextPage()) { while(crs.next()) { . . . // operate on chunks (of 100 rows each) in crs, // row by row } } 运行此代码片断后,应用程序会遍历所有 1000 行,但是每次内存中的数据只有 ...
add,addAll,clear,contains,containsAll,equals,hashCode,isEmpty,iterator,remove,removeAll,retainAll,size,toArray,toArray Methods inherited from interface java.util.Collection parallelStream,removeIf,stream Methods inherited from interface java.lang.Iterable ...
in Stream 新的标准输入流。 属性 RegisterAttribute 注解 重新分配“标准”输入流。 首先,如果有安全管理器,则会使用RuntimePermission("setIO")权限调用其checkPermission方法,以查看是否可以重新分配“标准”输入流。 在JDK1.1 中添加。 适用于 . 的 java.lang.System.setIn(java.io.InputStream)Java 文档 本...
map size:44000 Free memory after count44000is 0MB map size:45000 Free memory after count45000is 0MB java.lang.OutOfMemoryError: GC overhead limit exceeded Dumping heap to java_pid2732.hprof ... Exception in thread"main"Heap dump file created [5925166bytes in0.118secs] java.lang.OutOfMemory...
Set set=newHashSet();String s1=newString("hello");String s2=s1;String s3=newString("world");set.add(s1);set.add(s2);set.add(s3);System.out.println(set.size());//打印集合中对象的数目 为 2。Set 的add()方法是如何判断对象是否已经存放在集合中?
Sets the designated parameter in this RowSet object's command to the given Java long value. void setLong(String parameterName, long x) Sets the designated parameter to the given Java long value. void setMaxFieldSize(int max) Sets the maximum number of bytes that can be returned for a ...
Set the size of this edge effect in pixels. Java documentation for android.widget.EdgeEffect.setSize(int, int). Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attributio...
ok_reply:shared.ok);}/* Propagate without the GET argument (Isn't needed if we had expire since in that case we completely re-written the command argv) */if((flags&OBJ_SET_GET)&&!expire){int argc=0;int j;robj**argv=zmalloc((c->argc-1)*sizeof(robj*));for(j=0;j<c->argc...
48// 因为TreeSet时TreeMap实现的,所以这里实际上时返回TreeMap的“键集”对应的迭代器49publicIterator<E>descendingIterator() {50returnm.descendingKeySet().iterator();51}5253// 返回TreeSet的大小54publicintsize() {55returnm.size();56}5758// 返回TreeSet是否为空59publicbooleanisEmpty() {60returnm....
Java.Util Assembly: Mono.Android.dll Returns the number of elements in this set (its cardinality). C# [Android.Runtime.Register("size","()I","GetSizeHandler")]publicoverrideintSize(); Returns Int32 the number of elements in this set (its cardinality) ...