*/ public void trimToSize() { modCount++; if (size < elementData.length) { elementData = Arrays.copyOf(elementData, size); } } /** * Increases the capacity of this ArrayList instance, if * necessary, to ensure that it can hold at least the number of elements * specified by the minim...
警告:在调用setValue方法设置新值之后,必须调用fireStateChanged方法,否则微调控制器不会更新。 getNextValue和getPreviousValue方法返回当前值的下一个或者上一个值,如果到了边界则返回null。 警告:getNextValue和getPreviousValue方法不改变当前值。当用户点击微调控制器的向上箭头,将调用getNextVaule方法。如果返回值不...
【强制】ArrayList的subList结果不可强转成ArrayList,否则会抛出ClassCastException 异常,即java.util.RandomAccessSubList cannot be cast to java.util.ArrayList. 说明:subList 返回的是 ArrayList 的内部类 SubList,并不是 ArrayList ,而是 ArrayList 的一个视图,对于 SubList 子列表的所有操作最终会反映到原列表上。
booleanaddAll(int index,Collection<? extendsE> c) Inserts all of the elements in the specified collection into this list, starting at the specified position. voidclear() Removes all of the elements from this list. Objectclone() Returns a shallow copy of thisArrayListinstance. ...
接下来就是我们今天要说到的重点了,就是关于ArrayList的扩增问题,我们先看看这个函数: 将当前的下标传递进来,然后新的数组大小就变为原先大小的1.5倍,若是当前的数组大小还是小于当前的下标,那么直接将当前坐标设为数组的大小。若是数组大小太大了,已经超过Integer.MAX_VALUE – 8的话,那么再调用另外一个函数: ...
1、将 Array 转换成ArrayList时出错一些开发者经常用这样的代码将 Array 转换成 ArrayListList<String> ...
Change in javax.smartcardio.Card.disconnect(boolean reset) method behaviorPrior to the JDK 8u20 and JDK 7u72 releases, the javax.smartcardio.Card.disconnect(boolean reset) method had inverted logic for the 'reset' boolean value passed to it. The card was reset upon a disconnect if false was...
import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind.node.ObjectNode; import com.google.gson.Gson; import com.microsoft.azure.cosmos.sample.model.TodoItem; import java.util.ArrayList; import java.util.List; public class DocDbDao implements TodoDao { // The name...
ArrayIndexOutOfBoundsException ArrayList Arrays ArrayStoreException ArrayType ArrayType AssertionError AsyncBoxView AsyncHandler AsynchronousCloseException AtomicBoolean AtomicInteger AtomicIntegerArray AtomicIntegerFieldUpdater AtomicLong AtomicLongArray AtomicLongFieldUpdater AtomicMarkableReference ...
De-serializing a MessageFormat object with an ArgumentIndex value at or over the limit will throw an InvalidObjectException. Bug Fixes This release also contains fixes for security vulnerabilities described in the Oracle Critical Patch Update (CPU) Jul 2024 for Oracle Java SE (Doc ID 2992318.1)....