#What are the java functions?
Java has many functions, and functions are methods. There are many packages in the JDK, each package has many classes, and each class has many methods. So there are many functions in java.
For example, in the String class, valueOf(), split(), toArrayChar(), etc. are all functions.
For specific use, we can download the jdk API, which contains detailed descriptions of all classes and methods, so there is no need to memorize them. Just check the API documentation directly when using it.
API download address: https://www.oracle.com/technetwork/java/javase/documentation/jdk8-doc-downloads-2133158.html
API Online version address: https://docs.oracle.com/javase/8/docs/api/index.html
More related documents: https://www.oracle.com/cn/java/ technologies/java-se-api-doc.html
(Related video tutorial sharing: java video tutorial)
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