JavaSE中的小知识点分析

1、System.out.println();

调用System类中的public static final PrintStream out，输出为PrintStream（字节形式的输出流，为OutputStream的子类），再调用该类中的println方法

Api文档：

public void println()

Terminates the current line by writing the line separator string. The line separator string is defined by the system propertyline.separator, and is not necessarily a single newline character ('\n').