如何使用 Java 將陣列內容儲存在檔案中?


可以使用 Writer 類將資料寫入檔案。在下面給出的示例中,我們使用 BufferedWriter 編寫陣列的內容。

示例

線上演示

import java.io.BufferedWriter;
import java.io.FileWriter;

public class WritingStringArrayToFile {
   public static void main(String args[]) throws Exception {
      String[] myArray = {"JavaFX", "HBase", "OpenCV", "Java", "Hadoop", "Neo4j"};
      BufferedWriter writer = new BufferedWriter(new FileWriter("myFile.txt", false));
      for(int i = 0; i < myArray.length; i++) {
         writer.write(myArray[i].toString());
         writer.newLine();
      }
      writer.flush();
      System.out.println("Data Entered in to the file successfully");
   }
}

輸出

Data Entered in to the file successfully

如果你檢查該檔案,你就會發現該檔案包含陣列內容 -

示例

線上演示

import java.io.BufferedWriter;
import java.io.FileWriter;

public class WritingIntArrayToFile {
   public static void main(String args[]) throws Exception {
      Integer[] myArray = {23, 93, 56, 92, 39};
      BufferedWriter writer = new BufferedWriter(new FileWriter("myFile.txt", false));
      for(int i = 0; i < myArray.length; i++) {
         writer.write(myArray[i].toString());
         writer.newLine();
      }
      writer.flush();
      System.out.println("Data Entered in to the file successfully");
   }
}

輸出

Data Entered in to the file successfully

如果你檢查該檔案,你就會發現該檔案包含陣列內容 -

更新於:16-6-2020

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