... file.getParent() 方法來獲取文件的上級目錄: /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { File file = new File("C:/File/demo.txt"); String strParentDirectory = file.getParent(); System.out.println("文件的上...
http://www.o2fo.com/java/dir-parent.html...astModified() 方法來獲取目錄的最后修改時(shí)間: /* author by w3cschool.cc Main.java */ import java.io.File; import java.util.Date; public class Main { public static void main(String[] args) { File file = new File("C://FileIO//demo.txt"); System.out.println("最后修改時(shí)間:" + new ...
http://www.o2fo.com/java/dir-modification.html...例 以下實(shí)例演示了使用 File 類的 File() 構(gòu)造函數(shù)和 file.createNewFile() 方法來創(chuàng)建一個(gè)新的文件 /* author by w3cschool.cc Main.java */ import java.io.File; import java.io.IOException; public class Main { public static void main(String[] args) { try{ File file = new File("C...
http://www.o2fo.com/java/file-create.html...的 list 方法來遍歷指定目錄下的所有目錄: /* author by w3cschool.cc Main.java */ import java.io.*; class Main { public static void main(String[] args) { File dir = new File("F:"); File[] files = dir.listFiles(); FileFilter fileFilter = new FileFilter() { public boolean accept(File fi...
http://www.o2fo.com/java/dir-display.html...的 list 方法來輸出指定目錄下的所有文件: /* author by w3cschool.cc Main.java */ import java.io.*; class Main { public static void main(String[] args) { File dir = new File("C:"); String[] children = dir.list(); if (children == null) { System.out.println( "目錄不存在或它不是...
http://www.o2fo.com/java/dir-sub.html...了使用 File 類的 mkdirs() 實(shí)現(xiàn)遞歸創(chuàng)建目錄 : /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { String directories = "D:\\a\\b\\c\\d\\e\\f\\g\\h\\i"; File file = new File(directories); boolean result = file.mkdirs()...
http://www.o2fo.com/java/dir-create.html...的修改日期 Java 實(shí)例 以下實(shí)例演示了使用 File 類的 fileToChange.lastModified() 和 fileToChange setLastModified() 方法來修改文件最后的修改日期: /* author by w3cschool.cc Main.java */ import java.io.File; import java.util.Date; public class Main { public static void m...
http://www.o2fo.com/java/file-date-modify.html... 類的 listRoots() 方法來輸出系統(tǒng)所有根目錄: /* author by w3cschool.cc Main.java */ import java.io.*; class Main{ public static void main(String[] args){ File[] roots = File.listRoots(); System.out.println("系統(tǒng)所有根目錄:"); for (int i=0; i < roots.length; i++) { System.o...
http://www.o2fo.com/java/dir-root.html...類的 file.isHidden() 方法來判斷文件是否隱藏: /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { File file = new File("C:/Demo.txt"); System.out.println(file.isHidden()); } } 以上代碼運(yùn)行輸出結(jié)果為(Demo....
http://www.o2fo.com/java/dir-hidden.html...實(shí)例 以下實(shí)例演示了使用 File 類的 file.setReadOnly() 和 file.canWrite() 方法來設(shè)置文件只讀: /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { File file = new File("C:/java.txt"); System.out.println(file.s...
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... file.getParent() 方法來獲取文件的上級目錄: /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { File file = new File("C:/File/demo.txt"); String strParentDirectory = file.getParent(); System.out.println("文件的上...
http://www.o2fo.com/java/dir-parent.html...astModified() 方法來獲取目錄的最后修改時(shí)間: /* author by w3cschool.cc Main.java */ import java.io.File; import java.util.Date; public class Main { public static void main(String[] args) { File file = new File("C://FileIO//demo.txt"); System.out.println("最后修改時(shí)間:" + new ...
http://www.o2fo.com/java/dir-modification.html...例 以下實(shí)例演示了使用 File 類的 File() 構(gòu)造函數(shù)和 file.createNewFile() 方法來創(chuàng)建一個(gè)新的文件 /* author by w3cschool.cc Main.java */ import java.io.File; import java.io.IOException; public class Main { public static void main(String[] args) { try{ File file = new File("C...
http://www.o2fo.com/java/file-create.html...的 list 方法來遍歷指定目錄下的所有目錄: /* author by w3cschool.cc Main.java */ import java.io.*; class Main { public static void main(String[] args) { File dir = new File("F:"); File[] files = dir.listFiles(); FileFilter fileFilter = new FileFilter() { public boolean accept(File fi...
http://www.o2fo.com/java/dir-display.html...的 list 方法來輸出指定目錄下的所有文件: /* author by w3cschool.cc Main.java */ import java.io.*; class Main { public static void main(String[] args) { File dir = new File("C:"); String[] children = dir.list(); if (children == null) { System.out.println( "目錄不存在或它不是...
http://www.o2fo.com/java/dir-sub.html...了使用 File 類的 mkdirs() 實(shí)現(xiàn)遞歸創(chuàng)建目錄 : /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { String directories = "D:\\a\\b\\c\\d\\e\\f\\g\\h\\i"; File file = new File(directories); boolean result = file.mkdirs()...
http://www.o2fo.com/java/dir-create.html...的修改日期 Java 實(shí)例 以下實(shí)例演示了使用 File 類的 fileToChange.lastModified() 和 fileToChange setLastModified() 方法來修改文件最后的修改日期: /* author by w3cschool.cc Main.java */ import java.io.File; import java.util.Date; public class Main { public static void m...
http://www.o2fo.com/java/file-date-modify.html... 類的 listRoots() 方法來輸出系統(tǒng)所有根目錄: /* author by w3cschool.cc Main.java */ import java.io.*; class Main{ public static void main(String[] args){ File[] roots = File.listRoots(); System.out.println("系統(tǒng)所有根目錄:"); for (int i=0; i < roots.length; i++) { System.o...
http://www.o2fo.com/java/dir-root.html...類的 file.isHidden() 方法來判斷文件是否隱藏: /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { File file = new File("C:/Demo.txt"); System.out.println(file.isHidden()); } } 以上代碼運(yùn)行輸出結(jié)果為(Demo....
http://www.o2fo.com/java/dir-hidden.html...實(shí)例 以下實(shí)例演示了使用 File 類的 file.setReadOnly() 和 file.canWrite() 方法來設(shè)置文件只讀: /* author by w3cschool.cc Main.java */ import java.io.File; public class Main { public static void main(String[] args) { File file = new File("C:/java.txt"); System.out.println(file.s...
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