Interpretation of Java documentation: Functional analysis of the parseShort() method of the Short class

Interpretation of Java documentation: functional analysis of the parseShort() method of the Short class, requiring specific code examples

Introduction:
In Java programming, we often encounter Situations where strings need to be converted to Short type. In order to achieve this function, Java provides the parseShort() method in the Short class. This article will analyze the function of this method and give specific code examples.

Function analysis of the parseShort() method of the Short class:
The parseShort() method of the Short class is used to parse a string parameter into a signed short type value. This method has two overloaded forms, namely parseShort(String s) and parseShort(String s, int radix).

1. parseShort(String s) method:
   This method parses the given string parameter s into a signed integer of type short. String s can contain numbers, positive and negative signs, leading spaces, etc.

The following is the specific calling method of parseShort(String s) method:

String numStr = "12345";
short num = Short.parseShort(numStr);

2. parseShort(String s, int radix) method:
   This method will give The string parameter s is parsed into a signed short integer in the given radix base.

The following is the specific calling method of parseShort(String s, int radix) method:

String hexStr = "FF";
short num = Short.parseShort(hexStr, 16);

Code example:
Below we use some specific code examples to illustrate parseShort( ) method usage:

Example 1: Parse a string into an integer of type short

// 字符串表示的数字
String numStr = "12345";
short num = Short.parseShort(numStr);
System.out.println(num);  // 输出：12345

Example 2: Parse a string into an integer of signed short type

// 字符串表示的带符号数字
String signedNumStr = "-12345";
short signedNum = Short.parseShort(signedNumStr);
System.out.println(signedNum);  // 输出：-12345

Example 3: Parse a string into a short type integer in a specified base

// 字符串表示的十六进制数字
String hexStr = "FF";
short hexNum = Short.parseShort(hexStr, 16);
System.out.println(hexNum);  // 输出：255

// 字符串表示的八进制数字
String octStr = "77";
short octNum = Short.parseShort(octStr, 8);
System.out.println(octNum);  // 输出：63

// 字符串表示的二进制数字
String binStr = "1011";
short binNum = Short.parseShort(binStr, 2);
System.out.println(binNum);  // 输出：11

Conclusion:
The parseShort() method of the Short class provides the function of parsing a string into a short type integer. Through this method, we can convert a string representing a number into a short type, which is very useful in actual programming. Depending on specific needs, we can choose to use different overloaded forms, such as parseShort(String s) or parseShort(String s, int radix). It should be noted that when using this method, you need to ensure that the string can be correctly parsed into a short type value, otherwise a NumberFormatException will be thrown.

Summary:
This article analyzes the functions of the parseShort() method of the Short class in detail and gives specific code examples. I hope readers will have a deeper understanding of this method through this article and be able to use it flexibly in actual programming. The parseShort() method is a very useful tool in scenarios where strings are converted to short type integers.

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