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What is the better API to Reading Excel sheets in java - JXL or Apache POI [closed]
...re are many differences:
Perhaps the most significant difference is that Java JXL does not support the Excel 2007+ ".xlsx" format; it only supports the old BIFF (binary) ".xls" format. Apache POI supports both with a common design.
Additionally, the Java portion of the JXL API was last updated in...
How can I make a multipart/form-data POST request using Java?
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These are the Maven dependencies I have.
Java Code:
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
FileBody uploadFilePart = new FileBody(uploadFile);
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("up...
Running a Haskell program on the Android OS
...ramework (added since android 2.3) or you must write JNI glue code between Java-C-Haskell, the former option is the easier solution and if I remember correctly might actually be backwards compatible with previous versions of Android below 2.3.
Once you have this you must build Haskell code as share...
Java Generate Random Number Between Two Given Values [duplicate]
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With respect to the Java naming convention the variable names should start with lower case character
– Jens
May 19 '17 at 8:13
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How can I give the Intellij compiler more heap space?
...ss heap size.
Older versions:
Settings (Preferences on Mac) | Compiler | Java Compiler | Maximum heap size.
Compiler runs in a separate JVM by default so IDEA heap settings that you set in idea.vmoptions have no effect on the compiler.
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How do HashTables deal with collisions?
...tions which if you are lucky might send the objects to different buckets.
Java uses both option 1 and 2 in its hash table implementations.
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Java: Check if enum contains a given string?
... should never be used for ordinary control flow" (Joshua Bloch, "Effective Java").
– james.garriss
May 20 '14 at 16:34
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What is a difference between
... I never really got the PECS explanation by Josh Block in effective Java. However @Yishai, this is a helpful way to remember. Perhaps we can propose a new mnemonic, SAGE: Super -> Add / Get -> Extend
– dcompiled
Sep 28 '14 at 21:15
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Stateless and Stateful Enterprise Java Beans
I am going through the Java EE 6 tutorial and I am trying to understand the difference between stateless and stateful session beans. If stateless session beans do not retain their state in between method calls, why is my program acting the way it is?
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How can I truncate a double to only two decimal places in Java?
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If you want that for display purposes, use java.text.DecimalFormat:
new DecimalFormat("#.##").format(dblVar);
If you need it for calculations, use java.lang.Math:
Math.floor(value * 100) / 100;
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