java-7

Installed Java 7 on Mac OS X but Terminal is still using version 6

由 荒凉一梦 提交于 2019-11-26 11:56:39
I've installed JDK 7u7 downloaded from oracle's website. But after installation, the terminal is still showing java version 6 $java -version java version "1.6.0_35" Java(TM) SE Runtime Environment (build 1.6.0_35-b10-428-11M3811) Java HotSpot(TM) 64-Bit Server VM (build 20.10-b01-428, mixed mode) any idea why java 7 is not showing up? Ans: OK, the problem has been resolved. Here is the answer: I found that my Terminal has a .bash_profile and the java home variable is set to 1.6 export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home" So this is the line causing the

Differences in auto-unboxing between Java 6 vs Java 7

由 只谈情不闲聊 提交于 2019-11-26 11:55:45
问题 I have noted a difference in auto unboxing behavior between Java SE 6 and Java SE 7. I\'m wondering why that is, because I can\'t find any documentation of changes in this behavior between these two versions. Here\'s a simple example: Object[] objs = new Object[2]; objs[0] = new Integer(5); int myInt = (int)objs[0]; This compiles fine with javac from Java SE 7. However, if I give the compiler the \"-source 1.6\" argument I get an error on the last line: inconvertible types found : java.lang

How do I use JDK 7 on Mac OSX?

由 徘徊边缘 提交于 2019-11-26 11:51:20
问题 I would like to use the WatchService API as mentioned in this link: http://download.oracle.com/javase/tutorial/essential/io/notification.html After reading around, I found out that WatchService is part of the NIO class which is scheduled for JDK 7. So, it is in beta form. It\'s fine. http://jdk7.java.net/download.html has the JDK which I downloaded and extracted. I got a bunch of folders. I don\'t know what to do with them. Then, I read around some more and found that some nice group of

Application is using Java 6 from Apple instead of Java 7 from Oracle on Mac OS X?

由 两盒软妹~` 提交于 2019-11-26 11:48:18
问题 I am testing my current application with Mac OS X which has Java 7 from Oracle installed. Instead using Java 7 from Oracle, it\'s using Java 6 from Apple. The default system output of java -version is showing 7 . I tried most of the things mentioned in different sites, but I was unable to fix this issue. JAVA_HOME is also properly set. I am using the Mac only for testing purposes. I really need some guidance on this. When I run it with Eclipse by selecting JRE 7, it runs properly. Thus there

Java 7 underscore in numeric literals

由 冷暖自知 提交于 2019-11-26 11:47:11
When we must use a _ to separate digits in a number I don't' understand the following case in which I can't use it: In positions where a string of digits is expected (as documented in the JDK7 guide here ) Some examples? Colin Hebert You don't have to use "_", you can . And examples given in the proposal are credit card numbers, phone numbers, or simply numbers for which it makes sense to have a separator in the code. For the "In positions where a string of digits is expected" it's simply in places where it's supposed to start (or end) with a digit. Here are some examples. Note that according

How to set IntelliJ IDEA Project SDK

由 …衆ロ難τιáo~ 提交于 2019-11-26 10:17:17
问题 I just installed IntelliJ IDEA and when I try to create my first Project it asks for me to set up the Project SDK. When I click on \"JDK\" it asks for me to select the home directory of the JDK as shown in this image. I\'m having trouble locating where it is. 回答1: For a new project select the home directory of the jdk eg C:\Java\jdk1.7.0_99 or C:\Program Files\Java\jdk1.7.0_99 For an existing project. 1) You need to have a jdk installed on the system. for instance in C:\Java\jdk1.7.0_99 2) go

Does Android support JDK 6 or 7 [duplicate]

由 给你一囗甜甜゛ 提交于 2019-11-26 08:56:18
问题 This question already has answers here : diamond operator is not supported [duplicate] (4 answers) Closed 4 years ago . I am new to Android development. Can I use my existing Java code developed using JDK 7 in Android? The functions use xerces dom and xslt and xpathapi. Currently when I installed Android Eclipse ADT environment these functions are not compiling. I would also like to know whether an Android device itself supports JRE 6 or 7? 回答1: Originally Android development tools supported

Java G1 garbage collection in production

由 核能气质少年 提交于 2019-11-26 08:43:54
问题 Since Java 7 is going to use the new G1 garbage collection by default is Java going to be able to handle an order of magnitude larger heap without supposed \"devastating\" GC pause times? Has anybody actually implemented G1 in production, what were your experiences? To be fair the only time I have seen really long GC pauses is on very large heaps, much more than a workstation would have. To clarify my question; will G1 open the gateway to heaps in the hundreds of GB? TB? 回答1: It sounds like

Java 7 default locale

由 丶灬走出姿态 提交于 2019-11-26 08:22:42
问题 I have just installed jre7 and I\'m surprised to see that my default locale is now en_US. With jre6 it was de_CH. What is different with jre7? Is the default locale no more the one of the Operating System? (btw, I\'m using Windows7) Thx for your answer. Edit: I have seen the Locale for Category.FORMAT is the \"old\" one (de_CH). The Locale for Category.DISPLAY takes the language from the language of the OS (in Windows this is done in Control Panel > Region and Language > Keyboard and

java.lang.VerifyError: Expecting a stackmap frame at branch target JDK 1.7

由 允我心安 提交于 2019-11-26 08:01:59
问题 After upgrading to JDK 1.7 I am getting below exception: java.lang.VerifyError: Expecting a stackmap frame at branch target 71 in method com.abc.domain.myPackage.MyClass$JaxbAccessorM_getDescription_setDescription_java_lang_String.get(Ljava/lang/Object;)Ljava/lang/Object; at offset 20 at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2413) at java.lang.Class.getConstructor0(Class.java:2723) at java.lang.Class.newInstance0
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