Java - Convert String To Curt Example

In final a dyad of examples, I direct keep taught y'all how to convert String to Integer, Long, Double, Float, Boolean, as well as Byte inwards Java as well as today I volition demonstrate y'all how to convert String to Short inwards Java, but earlier that let's revise what is brusk information type inwards Java. The short is an integral information type similar to the int but it solely takes 2 bytes to shop information every bit compared to iv bytes required yesteryear an int variable. Since it takes solely 2 bytes or xvi bits to shop data, the make of brusk is also shorter than int. It ranges from -32,768 to 32767 (inclusive) or -2^15 to 2^15 -1. You mightiness live on wondering why upper jump is 255 and lower jump is -256 but that's because nosotros direct keep included null inwards between.

The short primitive type is also a signed variable, which agency the commencement flake is used to shop sign bit. The reveal is also represented inwards two's complement integer.

Now, similar to String to Integer example, in that place are 3 primary ways to convert a String to brusk primitive value or Short object inwards Java:

1. Using Short.parseShort() method
2. Using Short.valueOf() method
3. Using Short Constructor 

If y'all direct keep used parseInt() or Integer.valueOf() method inwards yesteryear hence y'all tin give notice empathise how they behave, both parseShort() as well as Short.valueOf() acquit inwards same way. If y'all are novel to Java world, y'all tin give notice farther see The Complete Java Masterclass to larn to a greater extent than about  Java fundamentals similar those. In this article, our focus volition live on on brusk but they are also real useful for converting other information types similar int, char, boolean, long, float as well as double inwards Java.

1. Short.parseShort() Example

This is the actual method which contains parsing logic for converting String to brusk inwards Java. It accepts a String as well as returns a brusk primitive value. The digits must live on inwards decimal format as well as the commencement grapheme tin give notice live on a + or - (minus) sign to signal positive as well as negative numbers.

Here are some examples of parseShort() method:

short second = Short.parseShort("101"); // returns 101 short second = Short.parseShort("+121"); // returns 121 short second = Short.parseShort("-121"); // returns -121 short second = Short.parseShort("32768"); // throw error 

This method throws an mistake if given String is invalid similar contains characters other than a decimal digit as well as positive or negative sign or an out-of-range brusk value.

The method is also overloaded to back upwards radix like. Short.parseShort(String value, int radix) which tin give notice live on used to convert a binary, octal, or hexadecimal String to equivalent brusk value.

2. Short.valueOf() Example

You tin give notice piece of occupation this method if y'all demand a Short object rather than a brusk value. This method internally uses the parseShort() method for parsing but on top of that, it provides caching. Similar to Integer.valueOf() method this i also caches Short values inwards the make -128 to 127.

Here are some examples of Short.valueOf() method:

Short object = Short.valueOf("101"); // returns 101 Short object = Short.valueOf("+121"); // returns 121 Short object = Short.valueOf("-121"); // returns -121 Short object = Short.valueOf("32768"); // throw error

Because of caching, it reduces the reveal of the temporary Short object for the oft used range. In short, piece of occupation this method if y'all demand a Short object rather than brusk value to avoid auto-boxing. See Effective Java third Edition yesteryear Joshua Bloch, it's amend to piece of occupation static manufacturing flora methods similar Short.valueOf() rather than constructor for creating objects. You tin give notice leverage caching to improve functioning as well as command reveal of instances, especially for an immutable class similar Short.

4. Best way to convert String to Short inwards Java?

The preferred method is ever the valueOf() method because it tin give notice cache oft used value as well as salve retention yesteryear returning immutable objects.

But, if y'all demand a brusk primitive value hence y'all tin give notice straight piece of occupation the Short.parseShort() method because it returns a brusk value as well as y'all don't require unboxing.

The Short constructor is fifty-fifty though a uncomplicated approach, it's non recommended because it straight dyad your code amongst a Short constructor.

As suggested inwards Joshua Bloch's classic mass Effective Java, The static manufacturing flora method like valueOf() is amend than the using constructor.  It non solely provides amend functioning yesteryear caching usually used value but also decouple your code from the Short constructor.

5. Short to String

So far, nosotros direct keep looked at the examples of converting a String object to Short object or primitive inwards Java but what most the opposite? how produce y'all convert a Short object or primitive to String? Well, that's non hard as well as inwards most cases done yesteryear Java automatically.

If y'all remember, the object course of report provides a toString() method which is used to convert whatever Object to String as well as wrapper classes similar Short or Integer is no different. In fact, they override toString() method to render their value every bit String.

Btw, y'all demand a Short object to convert it to String. So, if y'all direct keep a brusk primitive value hence but assign that to a Short object as well as auto-boxing volition automatically convert brusk primitive to a Short object. After that, y'all tin give notice telephone telephone the toString() method.

Here is an illustration of converting brusk to String inwards Java:

Short value = 123; // brusk primitive to Short object String str = value.toString(); // Short object to String

You tin give notice hence piece of occupation this String to impress or locomote yesteryear it to a method which needs a String value. If y'all are novel to method as well as course of report hence I advise y'all to start learning Java from The Complete Java Masterclass, i of the most comprehensive Java course of report out there.

6. Java Program to Convert String to Short

Here is our sample Java computer program to demonstrate how y'all tin give notice piece of occupation the parseShort(), valueOf() as well as constructor of java.lang.Short course of report to convert a String value inwards Java. You volition also larn the contrary i.e. converting a Short value to String inwards Java.

package tool;  /**  *   * Influenza A virus subtype H5N1 uncomplicated Java Program to convert a String to brusk primitive or Short wrapper  * object inwards Java.  */ public class Hello {    public static void main(String[] args) {      // parseShort() Example - String to brusk primitive value     brusk second = Short.parseShort("101");     System.out.println("short primitive value from string: " + s);      // Short.valueOf() Example - String to Short wrapper object     Short sObject = Short.valueOf("151");     System.out.println("Short wrapper value from string: " + sObject);      // Short constructor example     Short value = new Short("251");     System.out.println("Short object from string: " + value);      // Short to String Example using Short.toString()     String str = sObject.toString();     System.out.println("String value from Short object: " + str);      // Out-of-range brusk value volition throw error     brusk outOfRange = Short.parseShort("32768");   }  } Output brusk primitive value from string: 101 Short wrapper value from string: 151 Short object from string: 251 String value from Short object: 151 Exception in thread "main" java.lang.NumberFormatException: Value out of range. Value:"32768" Radix:10 at java.lang.Short.parseShort(Short.java:120) at java.lang.Short.parseShort(Short.java:144) at tool.Hello.main(Hello.java:33)

You tin give notice meet that parseShort() returns a primitive brusk value, valueOf() returns a Short object, as well as y'all tin give notice fifty-fifty piece of occupation the constructor of java.lang.Short course of report to convert a String to brusk inwards Java.

You tin give notice also meet that the contrary conversion e.g. Short to String is, fifty-fifty more, easier because of toString() method of the Short class.

In the example, nosotros direct keep also learned that out-of-range brusk values e.g. integer values to a greater extent than than 32767 volition throw java.lang.NumberFormatException inwards Java.

By the way, folks, if y'all desire to larn to a greater extent than most the maximum as well as minimum make of unlike information type inwards Java then  The Complete Java Masterclass is a practiced course of report to start with.

7. Important Points

Now that y'all know how to convert a String to Short inwards Java, let's revise some of the of import points

7.1. There are iii primary ways to convert a String to brusk inwards Java, parseShort(), valueOf() as well as Short constructor.

7.2. The parseShort() method genuinely parses the given String value as well as render a brusk primitive value.

7.3. Make certain y'all locomote yesteryear a valid brusk value e.g. if y'all locomote yesteryear an integer value which is higher than the maximum brusk value i.e. 32767 hence it volition throw NumberFormatException every bit shown below:

short value = Short.parseShort("34000");

Exception inwards thread "main" java.lang.NumberFormatException: Value out of range. Value:"34000" Radix:10
at java.lang.Short.parseShort(Short.java:120)
at java.lang.Short.parseShort(Short.java:144)
at tool.Hello.main(Hello.java:14)


7.4. Use Short.parseShort() method if y'all demand a brusk boolean value.

7.5. Use Short.valueOf() method if demand a Short object every bit this method render a Short object every bit opposed to the brusk primitive value returned yesteryear the parseShort() method.

Even though it leverages the parsing logic of parseShort() method it is preferred because it tin give notice cache oft used Short value to salve memory.

7.6. Even though y'all tin give notice piece of occupation the constructor of java.lang.Short course of report to convert a String to Short object, avoid that inwards favor of static manufacturing flora method Short.valueOf(). If y'all desire to larn to a greater extent than most why static manufacturing flora method is amend than the constructor, depository fiscal establishment gibe the Item 1 from Effective Java third Edition yesteryear Joshua Bloch.

7.7. The java.lang.Short course of report also render methods to convert a decimal brusk value into octal or hexadecimal. It has overloaded parseShort(String value, int radix) as well as valueOf(String value, int radix) which takes a radix to convert given String to Short inwards other reveal systems.

7.8. Short is a wrapper course of report for brusk primitive value, which takes 2 bytes of 16-bit to shop numeric integral value. The minimum brusk value is -32768 as well as the maximum value is 32767.


That's all most how to convert String to Short inwards Java. In a nutshell, if y'all demand a brusk primitive value, but piece of occupation Short.parseShort() method as well as if y'all demand a Short wrapper object, prefer Short.valueOf() method. Though, live on careful amongst the range, passing an out-of-range integer value to convert brusk may upshot inwards NumberFormatException.

Further Learning

The Complete Java Masterclass
Java Fundamentals: The Java Language

Core Java SE ix for the Impatient

Thanks for reading this article hence far. If y'all similar this pith Java tutorial hence delight portion amongst your friends as well as colleagues. If y'all direct keep whatever questions or feedback hence delight drib a note.

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