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Rails: How to change the text on the submit button in a Rails Form

i have listed my _form.html.erb file below what i would like to do is change the text on the submit button i know how to do it in html but not shure how to do it in Rails 3 ...
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JSON Array iteration in Android/Java

I am building an android app that needs to download and synchronise with an online database, I am sending my query from the app to a php page which returns the relevant rows from a database in JSON format. ...
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is there a Java equivalent to null coalescing operator (??) in C#? [duplicate]

Is it possible to do something similar to the following code in Java 6 Answers 6 ...
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深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...模式下的中断机制 查找 interrupt handler 入口 IDT 表中 descriptor 类型的检查 使用 16-bit gate descriptor IDT 表的 limit 检查 请求访问 interrupt handler 时的权限检查 gate 的权限设置 interrupt handler 的 code segment 权限设置 使用 interrupt...
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Is it possible to specify condition in Count()?

Is it possible to specify a condition in Count() ? I would like to count only the rows that have, for example, "Manager" in the Position column. ...
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Get second child using jQuery

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Get yesterday's date in bash on Linux, DST-safe

I have a shell script that runs on Linux and uses this call to get yesterday's date in YYYY-MM-DD format: 10 Answers ...
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How do I SET the GOPATH environment variable on Ubuntu? What file must I edit?

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Import text file as single character string

How do you import a plain text file as single character string in R? I think that this will probably have a very simple answer but when I tried this today I found that I couldn't find a function to do this. ...