什么是Java字符串';s默认的初始构造方法?

什么是Java字符串';s默认的初始构造方法?,java,Java,当我像这样初始化字符串对象时,它是如何工作的。它采用什么施工方法 String str = "str"; 相当于: String str = "str"; 它分配一个新字符串,以表示当前包含在字符数组参数中的字符序列(本例中为strData[])。Oracle文档中字符串类的详细信息: 请参阅构造函数摘要部分 char strData[] = {'s', 't', 'r'}; String str = new String( strData ); 帖子中的第一个答案有你想知道的一切不,不是

当我像这样初始化字符串对象时,它是如何工作的。它采用什么施工方法

String str = "str";
相当于:

String str = "str";

它分配一个新字符串,以表示当前包含在字符数组参数中的字符序列(本例中为strData[])。

Oracle文档中字符串类的详细信息:

请参阅构造函数摘要部分

char strData[] = {'s', 't', 'r'};
String str = new String( strData );

帖子中的第一个答案有你想知道的一切不,不是!!1) 字符串必须被插入,2)字符串的构造和插入必须在类被加载时完成。这些使您的代码非常不同。@StephenC请看一下官方字符串。这些文档过于简单化了。这证明在某些方面并不等同。
    Constructor and Description
String()
Initializes a newly created String object so that it represents an empty character sequence.


String(byte[] bytes)
Constructs a new String by decoding the specified array of bytes using the platform's default charset.


String(byte[] bytes, Charset charset)
Constructs a new String by decoding the specified array of bytes using the specified charset.


String(byte[] ascii, int hibyte)
Deprecated. 
This method does not properly convert bytes into characters. As of JDK 1.1, the preferred way to do this is via the String constructors that take a Charset, charset name, or that use the platform's default charset.


String(byte[] bytes, int offset, int length)
Constructs a new String by decoding the specified subarray of bytes using the platform's default charset.


String(byte[] bytes, int offset, int length, Charset charset)
Constructs a new String by decoding the specified subarray of bytes using the specified charset.


String(byte[] ascii, int hibyte, int offset, int count)
Deprecated. 
This method does not properly convert bytes into characters. As of JDK 1.1, the preferred way to do this is via the String constructors that take a Charset, charset name, or that use the platform's default charset.


String(byte[] bytes, int offset, int length, String charsetName)
Constructs a new String by decoding the specified subarray of bytes using the specified charset.


String(byte[] bytes, String charsetName)
Constructs a new String by decoding the specified array of bytes using the specified charset.


String(char[] value)
Allocates a new String so that it represents the sequence of characters currently contained in the character array argument.


String(char[] value, int offset, int count)
Allocates a new String that contains characters from a subarray of the character array argument.


String(int[] codePoints, int offset, int count)
Allocates a new String that contains characters from a subarray of the Unicode code point array argument.


String(String original)
Initializes a newly created String object so that it represents the same sequence of characters as the argument; in other words, the newly created string is a copy of the argument string.


String(StringBuffer buffer)
Allocates a new string that contains the sequence of characters currently contained in the string buffer argument.

String(StringBuilder builder)