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How to split a string with any whitespace chars as delimiters
What regex pattern would need I to pass to java.lang.String.split() to split a String into an Array of substrings using all whitespace characters ( ' ' , '\t' , '\n' , etc.) as delimiters?
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Could not find method compile() for arguments Gradle
...e.org/docs/current/javadoc/org/gradle/api/Project.html#dependencies(groovy.lang.Closure) because ModuleDependency.exclude(java.util.Map) method is used.
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Commenting code in Notepad++
... Note that in order for it to work, you MUST specify the (programming) Language for the code. Also, if you copypaste a piece of code to a new file without specifying the language manually - or - it contains a mix of languages (eg. inline SQL in Python code), the block comment/uncomment will not ...
Convert boolean to int in Java
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import org.apache.commons.lang3.BooleanUtils;
boolean x = true;
int y= BooleanUtils.toInteger(x);
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How can I find and run the keytool
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keytool error: java.lang.Exception: Only one command is allowed: both -exportcert and -list were specified.
– Gustaf Liljegren
Nov 11 '19 at 20:58
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Use String.split() with multiple delimiters
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I'd use Apache Commons:
import org.apache.commons.lang3.StringUtils;
private void getId(String pdfName){
String[] tokens = StringUtils.split(pdfName, "-.");
}
It'll split on any of the specified separators, as opposed to StringUtils.splitByWholeSeparator(str, separato...
How to print like printf in Python3?
...the details. And... it sorted my pet peeve with format specifiers in other langs -- allows for specifiers that themselves can be expressions! Yay! See: Format Specifiers.
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Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...his).get();
// 通过类全名得到类
String word = Reflect.on("java.lang.String").create("Reflect TextView").get();
// 无参数，建立类
Fragment fragment = Reflect.on(Fragment.class).create().get();
通过反射调用方法：
// 调用无参数方法
L.d("call getText() : " + R...
Default value of 'boolean' and 'Boolean' in Java
...itive boolean is false.
http://download.oracle.com/javase/6/docs/api/java/lang/Boolean.html
https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html
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How to set thousands separator in Java?
... java.util.IllegalFormatConversionException: %d can't format java.lang.String arguments
– Iman Marashi
Aug 19 '16 at 11:22
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