Java

Summary This article mainly introduces Java String related APIs and usage, string operations. String Core Knowledge Points Strings in Java are immutable, once created cannot be modified. All operations on original strings such as deletion, replacement, concatenation, etc., will not modify the original string, but produce a new string. And to reduce memory usage, when created directly with literals, it will look up in the string constant pool. If the same exists, directly return the reference. As shown in the following example. ...