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C# equivalent to Java's charAt()?
I know we can use the charAt() method in Java get an individual character in a string by specifying its position. Is there an equivalent method in C#?
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Increase heap size in Java
...o worry if you've chosen incorrectly, if you ask for 5g on a 32 bit system java will complain about an invalid value and quit.
As others have posted, use the cmd-line flags - e.g.
java -Xmx6g myprogram
You can get a full list (or a nearly full list, anyway) by typing java -X.
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Why don't Java Generics support primitive types?
Why do generics in Java work with classes but not with primitive types?
6 Answers
6
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Using Regular Expressions to Extract a Value in Java
...an simply use Pattern p = Pattern.compile("\\d+");
– javaMan
Nov 14 '11 at 1:05
15
Without explan...
Is MATLAB OOP slow or am I doing something wrong?
... per call
classdef class.staticnop(): 1.16361 sec 11.64 usec per call
Java nop(): 2.43035 sec 24.30 usec per call
Java static_nop(): 0.87682 sec 8.77 usec per call
Java nop() from Java: 0.00014 sec 0.00 usec per call
MEX mexnop(): ...
How to convert Milliseconds to “X mins, x seconds” in Java?
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Use the java.util.concurrent.TimeUnit class:
String.format("%d min, %d sec",
TimeUnit.MILLISECONDS.toMinutes(millis),
TimeUnit.MILLISECONDS.toSeconds(millis) -
TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes...
How to properly import a selfsigned certificate into Java keystore that is available to all Java app
I do want to import a self signed certificate into Java so any Java application that will try to establish a SSL connection will trust this certificate.
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Sublime Text 3能用支持的插件推荐 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...无意义的代码提示经常打乱我敲代码的节奏，并且在后台运行检查机制造成sublime text 3有点小卡顿，虽然部分问题可以设置sublimeLinter来解决，用了sublimeLinter一小段时间后还是放弃了，觉得代码提示对我应该没必要了。
插件下...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...险指针可用于同时解决这两个问题。 在使用冒险指针的系统中，每个线程都保留一个冒险指针的列表 ，这些指针指示该线程当前正在访问的节点。 （在许多系统中，此“列表”可能只限于一个或两个元素。 ）冒险指针列表上...
How do I set environment variables from Java?
How do I set environment variables from Java? I see that I can do this for subprocesses using ProcessBuilder . I have several subprocesses to start, though, so I'd rather modify the current process's environment and let the subprocesses inherit it.
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