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Metoda Java Enum toString().

Metoda toString() razreda Enum vrne ime te konstante enum, kot jo vsebuje deklaracija.

Metodo toString() je mogoče preglasiti, čeprav ni nujno.

Sintaksa

 public String toString() 

Parametri

TO

Preglasitev:

Metoda toString() razreda Enum preglasi metodo toString() razreda Object.

Povratna vrednost

Metoda toString() vrne ime te konstante enum.

Primer 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()); } } } 
Preizkusite zdaj

Izhod:

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

Primer 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.'); } } } } } } 

Izhod:

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

Primer 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!'); } } } 

Izhod:

 Enter your grade C Good You scored above 70