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docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/Math.html Math (Java SE 15 & JDK 15) public final class Math extends Object The class Math contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions. Unlike some of the numeric methods of class StrictMath, docs.oracle.com java.lang에 속해있는 클래스. 수학에서 ..

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/String.html#indexOf(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 docs.ora..

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/String.html#contains(java.lang.CharSequence) 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..

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/String.html#replace(char,char) 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 do..

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/StringBuffer.html StringBuffer (Java SE 15 & JDK 15) All Implemented Interfaces: Serializable, Appendable, CharSequence, Comparable public final class StringBuffer extends Object implements Serializable, Comparable , CharSequence A thread-safe, mutable sequence of characters. A string buffer is like a String docs.oracle.com java.lang..

docs.oracle.com/en/java/javase/15/docs/api/java.base/java/lang/String.html#format(java.lang.String,java.lang.Object...) 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 s..

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..