Java File.setReadable(boolean readable)方法

Java Java File.setReadable(boolean readable)方法具有以下語法。

public boolean setReadable(boolean readable)

範例

在下面的程式碼顯示如何使用File.setReadable(boolean readable)方法。

import java.io.File;

public class Main {
  public static void main(String[] args) {
    File f = new File("test.txt");

    // set read permission // from: WW W .yII bA i .C o  m 
    boolean bool = f.setReadable(true);

    System.out.println("setReadable() succeeded?: " + bool);

    // checks whether the file is readable
    bool = f.canRead();

    System.out.print("Is file readable?: " + bool);

  }
}

上面的程式碼生成以下結果。

setReadable() succeeded?: true
Is file readable?: true