在Java中读取字符串数组可以通过以下几种常见方法:
直接赋值
String[] stringArray = {"Hello", "World", "Java"};
使用命令行参数`args` 数组:
public class Main {
public static void main(String[] args) {
for (String arg : args) {
System.out.println(arg);
}
}
}
使用 `Scanner` 类从用户输入中读取:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter the number of elements:");
int n = scanner.nextInt();
String[] stringArray = new String[n];
for (int i = 0; i < n; i++) {
stringArray[i] = scanner.next();
}
scanner.close();
}
}
使用 `BufferedReader` 类从系统输入流中读取:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) {
try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
System.out.println("Enter the number of elements:");
int n = Integer.parseInt(br.readLine());
String[] stringArray = new String[n];
for (int i = 0; i < n; i++) {
stringArray[i] = br.readLine();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
使用 `Arrays.asList()` 方法将现有数组转换为 `List`,然后遍历打印:
import java.util.Arrays;
import java.util.List;
public class Main {
public static void main(String[] args) {
String[] stringArray = {"Hello", "World", "Java"};
List
stringList = Arrays.asList(stringArray); for (String s : stringList) {
System.out.println(s);
}
}
}
使用 `java.util.stream` API的方法:
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
public class Main {
public static void main(String[] args) {
String[] stringArray = {"Hello", "World", "Java"};
List
stringList = Arrays.stream(stringArray).collect(Collectors.toList()); for (String s : stringList) {
System.out.println(s);
}
}
}
以上方法可以帮助你在Java中读取字符串数组。请选择适合你需求的方法进行操作