Nanarin🙃

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/io/BufferedReader.html BufferedReader (Java SE 15 & JDK 15) All Implemented Interfaces: Closeable, AutoCloseable, Readable Direct Known Subclasses: LineNumberReader public class BufferedReader extends Reader Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of docs.oracle.com docs.or..

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/Character.html#getNumericValue(int) Character (Java SE 15 & JDK 15) All Implemented Interfaces: Serializable, Comparable , Constable public final class Character extends Object implements Serializable, Comparable , Constable The Character class wraps a value of the primitive type char in an object. An object of class Chara docs.oracl..

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/String.html#charAt(int) String (Java SE 15 & JDK 15) All Implemented Interfaces: Serializable, CharSequence, Comparable , Constable, ConstantDesc public final class String extends Object implements Serializable, Comparable , CharSequence, Constable, ConstantDesc The String class represents character strings. docs.oracle.com java.lang..