Shulou(Shulou.com)06/02 Report--

This article will explain in detail what are the common methods about Java String. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

1. Common methods of Java String:

Split () method

Equals () method

Substring () method

Example method:

Private boolean isSameSelCode (Fbillconfirm fbillconfirm, HashMap outputParam) {String strExpenseID=new String (); Fbillconfirmdetail [] fbillconfirmdetail=fbillconfirm.getFbillconfirmdetail (); if (int return EpenseSigned.checkSelCode (strExpenseIDs)) {return EpenseSigned.checkSelCode (strExpenseIDs);} else {return true;}}

2. Points for attention of Java string:

1.String str= ";-- point the handle to a str object (in the stack, into the pool), String str=new String ();-- create a new object (in the queue, not in the pool), the two are different.

Initialization of 2.String [] array: the initialization of String [] str array needs to define the length, otherwise it cannot be assigned directly, for example, str[ I] = "123" will report an error. Initialization requires a predefined length. Otherwise, it points directly to an existing array.

3.strA.eqauls (strB)-- strA cannot be null, otherwise a null pointer, strA==strB: compares the values of two references (that is, the value of the pointer), and strA==strB: compares the values of two objects.

4.split method:

Public static void splitString () {/ / define a string variable String strUser = "Zhangshan,Lisi,Wangma"; / / cut String [] strsUser = strUser.split (","); for (int I = 0; I < strsUser.length; iTunes +) {System.out.println (strsuser [I]);}}

Print the results:

Zhangshan

Lisi

Wangma

This is the end of this article on "what are the common methods of Java String". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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