learning java FileReader

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learning java FileReader

import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.nio.charset.Charset; public class FileReaderTest { public static void main(String[] args) { try { var fr = new FileReader("FileReaderTest.java&qu…

Learning Java language Fundamentals

Chapter 2 Learning Java language fundamentals exercises: 1.What is Unicode? Unicode is a computing industry standard for consistently encoding,representing,and handling text that's expressed in most of world's writing system 2.What is a comment? A c…

Java FileReader使用相对路径读取文件

Java FileReader使用相对路径读取文件觉得有用的话,欢迎一起讨论相互学习~Follow Me 在进行编程时需要时常更换主机进行测试,如果使用绝对路径则需要经常更改,为此使用相对路径是一个不错的选择.但是使用./,../或.\\,..\\的方式会经常出现未找到文件的错误需要读取的文件路径为项目根目录\experiment\1.txt 解决方案使用System.getProperty("user.dir")获取当前程序运行的工作根目录使用File.separator表…

java FileReader/FileWriter读写文件

java FileReader/FileWriter读写字母和数字没问题,但读写汉字就乱码.记录下,后面找到解决方法再补上. public static void main(String[] args) { FileReader fr = null; FileWriter fw = null; try { int a = 0; fr = new FileReader("c:/a.txt");//读取目标 fw = new FileWriter("c:/b.txt")…

learning java 推回输入流

import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.io.PushbackReader; public class PushbackTest { public static void main(String[] args) { try { ); { ]; var lastContent = ""; ; ){ ,hasRead);…

blogs for learning java

曹海成的专栏 http://blog.csdn.net/caohaicheng/article/details/38071097 http://blog.csdn.net/a5489888/article/details/8278301 http://blog.csdn.net/fmh2011/article/details/39205759 http://blog.csdn.net/caohaicheng/article/details/38116481 java nio http://blo…

Learning Java IO indexes

I/O Streams, it simplifies I/O operations, write a whole object out to stream & read back. File I/O and file system operations, including random access files. Classes about I/O Streams most are in java.io, about File I/O are in java.nio.file. I/O Str…