Kako pretvoriti Char u String u Java (Primjeri)

U ovom vodiču proučavat ćemo programe za

  1. Za pretvaranje znaka u String
  2. Za pretvaranje niza u znak

Pretvori znak u niz

Postoji više načina za pretvaranje znaka u niz Java. Zapravo, niz je napravljen od niza znakova Java. Char je 16-bitni ili 2-bajtni tip podataka bez predznaka.

String možemo pretvoriti u znak pomoću 2 metode –

Metoda 1: Korištenje metode toString().

public class CharToString_toString {
  public static void main(String[] args) {
    //input character variable 
    char myChar = 'g';
    //Using toString() method
    //toString method take character parameter and convert string.
    String myStr = Character.toString(myChar);
    //print string value
    System.out.println("String is: " + myStr);
  }
} 

Očekivani rezultat:

String is: g

Metoda 2: Korištenje metode valueOf().

public class CharToString_valueOf {
  public static void main(String[] args) {
    char myChar = 'g';
    //valueOf method take character parameter and convert string.
    String myStr = String.valueOf(myChar);
    ////print string value
    System.out.println("String is: " + myStr);
  }
}

Očekivani rezultat:

String is: g

Pretvori niz u char

String možemo pretvoriti u char pomoću metode charAt() klase String.

//Convert String to Character using string method 
package com.guru99;
 
public class StringToChar {
 
	public static void main(String[] args) 
	{
		//input String 
	      String myStr = "Guru99";
	      
	      //find string length using length method.
	      int stringLength =myStr.length();
	      
	      //for loop start 0 to total length
	      for(int i=0; i < stringLength;i++)
	      {
	    	  //chatAt method find Position and convert to character.  
	        char myChar = myStr.charAt(i);
	        
	        //print string to character
	        System.out.println("Character at "+i+" Position: "+myChar);
	      }
 
	}
 
}

Očekivani rezultat:

Character at 0 Position: G
Character at 1 Position: u
Character at 2 Position: r
Character at 3 Position: u
Character at 4 Position: 9
Character at 5 Position: 9