java define_Java Long类的define()方法与示例
java define
長(zhǎng)類解碼()方法 (Long class decode() method)
decode() method is available in java.lang package.
在java.lang包中提供了define ()方法 。
decode() method is used to decode the given String value into a Long value.
encode()方法用于將給定的String值解碼為L(zhǎng)ong值。
decode() method is a static method, it is accessible with the class name too and if we try to access the method with the class object then also we will not get an error.
encode()方法是一個(gè)靜態(tài)方法,也可以使用類名進(jìn)行訪問,如果我們嘗試使用類對(duì)象訪問該方法,那么也不會(huì)收到錯(cuò)誤。
decode() method may throw a NumberFormatException at the time of decoding a String to a Long.
在將String解碼為L(zhǎng)ong時(shí), decode()方法可能會(huì)引發(fā)NumberFormatException。
NumberFormatException: In this exception, if the given string parameter does not have a parsable integer.
NumberFormatException:在此異常中,如果給定的字符串參數(shù)沒有可解析的整數(shù)。
Syntax:
句法:
public static Long decode(String str);Parameter(s):
參數(shù):
String str – represents the String to decode.
字符串str –表示要解碼的字符串。
Return value:
返回值:
The return type of this method is long, it returns the Long holding a long value represented by the argument of String type.
該方法的返回類型為long ,它返回Long,其中Long持有一個(gè)用String類型的參數(shù)表示的long值。
Example:
例:
// Java program to demonstrate the example // of decode(String str) method of Long classpublic class DecodeOfLongClass {public static void main(String[] args) {// Variables initializationlong l = 100;String str = "20";// Long object initialized with "long" valueLong ob1 = new Long(l);// Display ob1 resultSystem.out.println("ob1: " + ob1);// It returns an Long object holding the long value // denoted by the given String argument by calling // ob1.decode(str)Long result = ob1.decode(str);// Display resultSystem.out.println("ob1.decode(str) :" + result);} }Output
輸出量
ob1: 100 ob1.decode(str) :20翻譯自: https://www.includehelp.com/java/long-class-decode-method-with-example.aspx
java define
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