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                # 如何在 Java 中將字符串轉換為`char` > 原文: [https://beginnersbook.com/2014/06/how-to-convert-char-to-string-and-a-string-to-char-in-java/](https://beginnersbook.com/2014/06/how-to-convert-char-to-string-and-a-string-to-char-in-java/) 在本教程中,我們將看到`char`到`String`和`String`到`char`轉換的程序。 ## 將`char`轉換為`String` 我們有以下兩種方式進行字符串轉換。 方法 1:使用`toString()`方法 方法 2:使用[`valueOf()`](https://beginnersbook.com/2013/12/java-string-copyvalueof-method-example/)方法 ```java class CharToStringDemo { public static void main(String args[]) { // Method 1: Using toString() method char ch = 'a'; String str = Character.toString(ch); System.out.println("String is: "+str); // Method 2: Using valueOf() method String str2 = String.valueOf(ch); System.out.println("String is: "+str2); } } ``` **輸出:** ```java String is: a String is: a ``` ## 將字符串轉換為字符 我們可以使用[`String`類](https://beginnersbook.com/2013/12/java-strings/)的[`charAt()`方法](https://beginnersbook.com/2013/12/java-string-charat-method-example/)將`String`轉換為`char`。 ```java class StringToCharDemo { public static void main(String args[]) { // Using charAt() method String str = "Hello"; for(int i=0; i<str.length();i++){ char ch = str.charAt(i); System.out.println("Character at "+i+" Position: "+ch); } } } ``` **輸出:** ```java Character at 0 Position: H Character at 1 Position: e Character at 2 Position: l Character at 3 Position: l Character at 4 Position: o ```
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