java-7

Java 7 introduces a great API for writing custom file systems. Consider a use case where I don't want to implement a new file system, I just want to tweak the behavior of the existing one. For example, flip every bit that is written/read from it. It seems to me that the current jdk just does not have the appropriate facilities for this. AbstractFileSystemProvider, the provider that WindowsFileSystemProvider extends is package-private so I can't reuse it. I didn't even find the concrete implementation for Linux. Problem #1: There is no useful abstraction of the current file system for extension

i am writing a code i am creating a directory with java nio api my segment of code is Path target = Paths.get(""+folder_path+xx[0]); Set<PosixFilePermission> perms = null; if(xx[2].toLowerCase().equals("read")) perms =PosixFilePermissions.fromString("r--------"); if(xx[2].toLowerCase().equals("read/write")) { perms =PosixFilePermissions.fromString("rw-------"); } FileAttribute<Set<PosixFilePermission>> attr = PosixFilePermissions.asFileAttribute(perms); Files.createDirectory(target, attr); but it is throwing an error java.nio.file.FileAlreadyExistsException: /home/ritesh/Desktop/userA reason i

I have found some difficult cautious between Java 1.7_51 and Java 1.8_20. The initial situation: One Interface: interface InterfaceA { public void doSomething(); } Two classes: public class ClassA implements InterfaceA { public void doSomething() { System.out.println("Hello World!"); } } public class ClassB { public static void main(String[] args) { ClassA a = new ClassA(); a.doSomething(); } } Next i have compiled the classes with (Java 1.8) -> javac *.java after the compiler finished i removed the InterfaceA.java and InterfaceA.class file's. Now i try again too compile only the ClassB.java

I wish to find out does anyone have problem compiling JDK 7 code with Eclipse? Because currently I only able use JRE 7 in Eclipse to test run but as for trying to use JDK 7 features into my code, it will state it will not support. Eclipse 3.8 M1 (Juno) is the earliest stable version to have support for Java 7. Java 7 support will also be available in the upcoming 3.7.1 release. Unfortunately, since Java 7 released after Eclipse 3.7 (Indigo) release, the Java 7 support could not make it to 3.7. 来源： https://stackoverflow.com/questions/7054789/eclipse-and-jdk-7

From what I understand Eclipse Indigo 3.7.1 should now have support for Java 7. I downloaded Eclipse 3.7.1. and JDK 1.7.0 and added JRE7 in the settings in Eclipse. Then I created a new project using JRE7 and wrote a short Java 7 program: public class Test7 { public static void main(String[] args) { String k = "Hello"; switch(k) { case "World": System.out.println("World Hello"); break; case "Hello": System.out.println("Hello World"); break; } } } But I get an error when I try to use a String in a Switch statement. The error in Content assist looks like this: Have I done anything wrong or doesn

First, I had installed jdk 1.6.0_43 and oracle weblogic 12.1.1, I was successfully able to deploy my application. I then upgraded both my jdk (1.7.0_60) and weblogic (12.1.2), but was unable to deploy my application. Now, I downgraded my weblogic (12.1.1) but retained my jdk 1.7.0_60, but i was still not able to deploy my application successfully. In both the failure cases, I got the same error with the following message. Is there something with respect to java 7 I should be aware of? I tried searching for this a lot, but in vain.. [exec] javax.naming.CommunicationException [Root exception is