De methode toString() van de klasse Enum retourneert de naam van deze enum-constante, zoals de declaratie bevat.

De methode toString() kan worden overschreven, hoewel dit niet essentieel is.

Syntaxis

 public String toString() 

Parameters

DAT

Overschrijven:

De methode toString() van de klasse Enum overschrijft de methode toString() van de klasse Object.

Winstwaarde

De methode toString() retourneert de naam van deze enumconstante.

voorbeeld 1

 enum Planets{ Mercury, Venus, Earth, Mars, Jupiter,Uranus, Neptune; } public class Enum_toStringMethodExample1 { public static void main(String[] args) { System.out.println('Seven Planets :'); for(Planets planets: Planets.values()){ int i = planets.ordinal()+1; System.out.println(i+' '+planets.toString()); } } } 

Uitgang:

 Seven Planets : 1 Mercury 2 Venus 3 Earth 4 Mars 5 Jupiter 6 Uranus 7 Neptune 

Voorbeeld 2

 import java.util.Scanner; public class Enum_toStringMethodExample2 { enum Position{ First ,Second,Third; } enum Prize{ Gold ,Silver,Bronze; } public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println('Enter your positon:'); String str =scanner.next(); for(Position pos : Position.values()){ int i = pos.ordinal(); //it will return the enum constant as String String str1 =pos.toString(); if(str.equals(str1)){ for(Prize prize: Prize.values()){ int j= prize.ordinal(); if(i==j){ System.out.println('Congratulation! You have won a '+prize+' medal.'); } } } } } } 

Uitgang:

 Enter your positon: Second Congratulation! You have won a Silver medal. 

Voorbeeld 3

 import java.util.Scanner; public class Enum_toStringMethodExample3 { enum Grade{ A ,B,C,D ,E; } public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println('Enter your grade'); String str = scanner.next(); String str1 =Grade.A.toString(); if(str.equals(str1)){ System.out.println('Excellent
You scored above 90'); } else if(str.equals(Grade.B.toString())){ System.out.println('Very good
You scored above 80 but below 90 '); } else if(str.equals(Grade.C.toString())){ System.out.println('Good
You scored above 70'); } else if(str.equals(Grade.D.toString())){ System.out.println('Fair
You scored aboved 50'); } else{ System.out.println('Word Hard
You failed!'); } } } 

Uitgang:

 Enter your grade C Good You scored above 70