importjava.io.File;publicclassFileNameExample{publicstaticvoidmain(String[]args){StringfilePath="path/to/your/file.txt";Filefile=newFile(filePath);StringfileNameWithExtension=file.getName();intlastDotIndex=fileNameWithExtension.lastIndexOf(".");StringfileNameWithoutExtension=fileNameWithExtension.subs...
StringfileNameWithoutExtension=fileName.substring(0,fileName.lastIndexOf("."));// 去掉文件名的后缀 1. 代码说明: substring(0, fileName.lastIndexOf(".")):从文件名中截取去掉后缀的部分。 lastIndexOf("."):获取文件名中最后一个.的索引。 完整代码示例 下面是将上述步骤整合起来的完整代码示例: imp...
最后,使用String的substring()方法获取没有扩展名的文件名:String nameWithoutExtension = fileName.substring(0, dotIndex); 示例代码如下: 代码语言:txt 复制 import java.io.File; public class Main { public static void main(String[] args) { File file = new File("path/to/file"); String file...
linkid=830387"version":"0.2.0","configurations":[{"type":"java","name":"Java Debug","request":"launch","mainClass":"${file}","console":"externalTerminal"}]} 4.按下“ctrl+shift+p”输入"settings.json"–》“首选项:打开设置(json)”,在最后添加如下代码(将java.home后面的地址替换成你自...
static void m(List<String>... stringLists) { Object[] array = stringLists; List<Integer> tmpList = Arrays.asList(42); array[0] = tmpList; // Semantically invalid, but compiles without warnings String s = stringLists[0].get(0); // Oh no, ClassCastException at run...
Extension Methods Expand table JavaCast<TResult>(IJavaObject) Performs an Android runtime-checked type conversion. JavaCast<TResult>(IJavaObject) GetJniTypeName(IJavaPeerable) Applies to ProductVersions .NET for Android.NET for Android API 33, .NET for Android API 34 ...
Such streams have a structure like “filename:streamname”. A system property jdk.io.File.enableADS has been added to control this behavior. To disable ADS support in java.io.File, the system property jdk.io.File.enableADS should be set to false (case ignored). Stricter path checking ...
@interface Anno { } @Anno class AnnosWithoutProcessors { } The following commands compile the annotation processorAnnoProc, then run this annotation processor against the source fileAnnosWithoutProcessors.java: javac AnnoProc.java javac -cp . -Xlint:processing -processor AnnoProc -proc:only AnnosWi...
Such streams have a structure like “filename:streamname”. A system property jdk.io.File.enableADS has been added to control this behavior. To disable ADS support in java.io.File, the system property jdk.io.File.enableADS should be set to false (case ignored). Stricter path checking ...
Namespace: Java.IO Assembly: Mono.Android.dll An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream. C#コピー [Android.Runtime.Register("java/io/ObjectInputStream", DoNotGenerateAcw=true)]publicclassObjectInputStream:Java.IO.InputStream,IDisposable...