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Accessing members of items in a JSONArray with Java
I'm just getting started with using json with java. I'm not sure how to access string values within a JSONArray. For instance, my json looks like this:
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How can I lookup a Java enum from its String value?
...says that static initialization occurs from top to bottom: docs.oracle.com/javase/specs/jls/se7/html/jls-8.html#d5e12267
– Selena
Oct 15 '14 at 18:22
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What is the “volatile” keyword used for?
...t usage. Could you please tell me what it should be used for in C# and in Java?
8 Answers
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How do I get a platform-dependent new line character?
How do I get a platform-dependent newline in Java? I can’t use "\n" everywhere.
9 Answers
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Java: Get last element after split
...ble ways together!!
By using lastIndexOf() & substring() methods of Java.lang.String
// int firstIndex = str.indexOf( separator );
int lastIndexOf = str.lastIndexOf( separator );
String begningPortion = str.substring( 0, lastIndexOf );
String endPortion = str.substring( lastIndexOf + 1 );
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Java String to SHA1
I'm trying to make a simple String to SHA1 converter in Java and this is what I've got...
12 Answers
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Why does sun.misc.Unsafe exist, and how can it be used in the real world?
... address.It is possible to retrieve an
object’s memory address using the java.lang.Unsafe class, and operate on its fields directly via unsafe get/put methods!
Compile time optimizations for JVM. HIgh performance VM using "magic", requiring low-level operations. eg: http://en.wikipedia.org/wiki/Ji...
Division of integers in Java [duplicate]
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Is there any keyword in java to divide two numbers e.g. 'Math.floorDiv(num1,num2)'
– Rudra
Jan 4 '16 at 12:51
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IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
...I removed my old JSDK and added it again, but it does not work. I am using Java 2016.3
– mtber75
Dec 1 '16 at 14:09
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Functional style of Java 8's Optional.ifPresent and if-not-Present?
In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present.
12 A...