The absolutely most important reason that String is immutable is that it is used by the class loading mechanism, and thus have profound and fundamental security aspects. Had String been mutable, a request to load "java.io.Writer" could have been changed to load "mil.vogoon.DiskErasingWriter"...
2. What Is an Immutable Object? An immutable object is anobject whose internal state remains constant after it has been entirely created. This means that once the object has been assigned to a variable, we can neither update the reference nor mutate the internal state by any means. We have...
String基本约定中最重要的一条是immutable。的确声明String为final 和immutable是没有必然关系，但是假如Stri...
5) Another good reason of Why String is immutable in Java suggested by Dan Bergh Johnsson on comments is: The absolutely most important reason that String is immutable is that it is used by theclass loading mechanism, and thus have profound and fundamental security aspects. Had String been mut...
* are created. String buffers support mutable strings. * Because String objects are immutable they...
String is widely used as parameter for many java classes, e.g. network connection, opening files, etc. Were String not immutable, a connection or file would be changed and lead to serious security threat. The method thought it was connecting to one machine, but was not. Mutable strings cou...
String buffers support mutable strings. Because String objects are immutable they can be shared. 接下来说字符缓冲区支持可变的字符串,因为缓冲区里面的字符串对象们可以被共享(其实就是使对象的引用发生了改变)。 在Java 中,提供了通过字符串连接符( + )号,将其他类型的对象转换成 String 类型: ...
String buffers support mutable strings. Because String objects are immutable they can be shared. For example: String str = "abc"; is equivalent to: char data[] = {'a', 'b', 'c'};String str = new String(data); Here are some more examples of how strings can be used: System.out....
Strings are constant; their values cannot be changed after they are created. String buffers support mutable strings. Because String objects are immutable they can be shared. For example: String str = "abc"; is equivalent to: char data[] = {'a', 'b', 'c'}; String str = new String(...
ToImmutableArray<TSource>(IEnumerable<TSource>) Crea una matriz inmutable a partir de la colección especificada. ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>) Construye un diccionario inmutable a partir de una colección de elementos existente, aplicando una fu...