逐个元素赋值
```java
char[] charArray = new char;
for (int i = 0; i < charArray.length; i++) {
charArray[i] = (char) System.in.read();
}
使用`Scanner`类
```java
import java.util.Scanner;
Scanner scanner = new Scanner(System.in);
char[] charArray = new char;
for (int i = 0; i < charArray.length; i++) {
charArray[i] = scanner.next().charAt(0);
}
使用`BufferedReader`
```java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
char[] charArray = new char;
for (int i = 0; i < charArray.length; i++) {
charArray[i] = bufferedReader.readLine().charAt(0);
}
使用`arrays.fill()`方法 (适用于填充特定字符):
```java
import java.util.Arrays;
char[] charArray = new char;
Arrays.fill(charArray, 'a');
使用Java 8流
```java
import java.util.stream.Collectors;
import java.util.stream.IntStream;
char[] charArray = IntStream.range(0, 10).mapToObj(i -> (char) ('a' + i)).collect(Collectors.toList()).toArray(char[]::new);
请选择适合您需求的方法进行操作。