Java : String representation from Integer [duplicate] - java

This question already has answers here:
How to convert number to words in java
(31 answers)
Closed 9 years ago.
I'm having a list of Integer from 1 to 100. If I loop through the list, I wanted to make the output as,
"One"
"Two" .....
"Hundred"
Is there any direct method in Java to obtain the above output?

No such method or class has been provided by JDK.
You can use the code mentioned here or here for reference purpose.

switch case are used to meet that requirement: Here
is source code.
Answer of this question described here: How to convert number to words in java
Officially this is not possible or no standard library available by native Java.
Don't duplicate.

There is none in the official Java libraries. However, the International Components for Unicode project has a RuleBasedNumberFormat with those capabilities. It even has a SPELLOUT constant.

Related

Can we use camel case in java package naming? [duplicate]

This question already has answers here:
What is the convention for word separator in Java package names?
(6 answers)
Closed 6 years ago.
For example:
Which of the following package names is correct?
com.google.payrolldivision;
or
com.google.payrollDivision;
Please just answer the question without beating around the bush?
Please just answer the question
OK, then taking your question as a "a xor b", the answer is
com.google.payrolldivision;
as per https://docs.oracle.com/javase/tutorial/java/package/namingpkgs.html.
However, your title and post ask two very different questions, so it's hard to "just answer the question".
According to the Oracle webpage, you should write your package name in lowercase.
Package names are written in all lower case to avoid conflict with the names of classes or interfaces.

Why the java array documentation doesn't show the field "length"? [duplicate]

This question already has answers here:
Where is array's length property defined?
(7 answers)
Closed 7 years ago.
I have seen some examples of getting the length of an array using the field length, for example: array.length. I have always used this field but checking the array documentation I did not see that variable. Why is it that the documentation doesn't show it? It only shows a bunch of methods but I can't see the variable length. Is it in another class or what? I have seen questions like this before but the answers are not well explained so I can't understand them.
Because length is not actually a field. The compiler recognizes the identifier specially and translates it to an arraylength instruction rather than a getfield instruction.

What do the paired "<" and ">" symbols mean in Java? (For example, ArrayList<String>) [duplicate]

This question already has answers here:
What is the role of the data types inside of < > in Java? [duplicate]
(5 answers)
Closed 8 years ago.
I am familiar with using parentheses, as in myMethod(myParameter), in Java and other programming languages, but what do the lesser than < and greater than > signs mean when they are used together in a array name? Is there a special name for them?
Sorry if this is a duplicate, but I don't know how to search for this.
Clarification: I wasn't referring to the role of any specific type inside the symbols, but rather the usage of the <> symbols themselves.
it is java generics, for type safe, and always.using with collections.
i suggest you read the SCJP book, it has a chapter called Generics and Collections, it provides all details you will need, it really helpful. hope it helps.

Is there a Java equivalent for LINQ? [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
What is the Java equivalent for LINQ?
There are numerous questions asking whether there is a Java equivalent for LINQ. But most of them are incorrectly specifying that there is nothing.
This library provides a full LINQ API: https://github.com/nicholas22/jpropel-light
It does so with functional-style constructs and it also uses deferred execution.
// select names starting with j, using LINQ-style statements
new String[] { "james", "john", "john", "eddie" }.where(startsWith("j")).distinct().all(println());
Another one that I've tried myself is jaque: http://code.google.com/p/jaque/

How to convert string to math equation? [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
Java: Parse a mathematical expression given as a string and return a number
Hello there,
I would like to ask you, if exist some way how to convert string "1+2+3" to math equation? Exist for this purpose some function or method in Java?
Thanks for hints.
It's not part of the standard API.
But I implemented it in my project, you can have a look here.
https://github.com/MarkyVasconcelos/Towel/wiki/Expression
This would necessarily depend on the implementation of the Equation class you're using. Check its API.

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