In Java programming, String, StringBuilder and StringBuffer are commonly used string processing classes. They are both used to manipulate strings, but there are some differences in some aspects. This article will introduce these three classes in detail and provide corresponding source code examples.
- String class:
String class is the most basic string class in Java. It is immutable, once created, it cannot be modified. When operating on a String object, a new String object is actually created. This means that every time the string content is modified, a new object is created, which takes up more memory. This can cause performance degradation for frequent string operations, especially within loops.
Here is sample code using the String class:
String str = "Hello";
str += " World";
System.out.println(str)</