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crazy
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1 parent dcef6c4 commit b3cd2b0

5 files changed

Lines changed: 48 additions & 7 deletions

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‎JavaBase/.classpath‎

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<classpath>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
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<classpathentry kind="lib" path="D:/Program Files/eclipse/log4j-1.2.17.jar"/>
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<classpathentry kind="lib" path="D:/Program Files/eclipse/lombok.jar"/>
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<classpathentry kind="lib" path="D:/eclipse/log4j-1.2.17.jar"/>
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<classpathentry kind="lib" path="D:/eclipse/lombok.jar"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>

‎JavaBase/src/com/chuanzhi/io01/FileWriterDemo.java‎

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package com.chuanzhi.io01;
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import java.io.FileWriter;
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import java.io.IOException;
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public class FileWriterDemo {
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public static void main(String[] args) throws IOException{
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FileWriter fw=new FileWriter("");
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fw.write("abcde");
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}
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}

‎JavaBase/src/com/it520/io01/FileInputStreamDemo.java‎

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package com.it520.io01;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.InputStream;
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public class FileInputStreamDemo {
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public static void main(String[] args) throws Exception{
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//1.创建目标对象（表示数据保存到哪一个文件）
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File f1=new File("file/stream.txt");
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//2.创建水管
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InputStream input=new FileInputStream(f1);//InputStream和OutputStream不能直接new
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//3.具体操作
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byte[] b1=new byte[5];//
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int len=-1;
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len=input.read(b1);
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while(len!=-1){
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String str=new String(b1,0,len);
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System.out.println(str);
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}
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//4.关闭操作
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input.close();
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}
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}

‎JavaBase/src/com/xinan/io/TestFile01.java‎

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public class TestFile01 {
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public static void main(String[] args) throws IOException{
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File f1=new File("java宝典0");//创建新的file对象
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if(f1==null){
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f1.createNewFile();
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}
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System.out.println(f1);
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System.out.println(f1.getAbsolutePath());
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if(!f1.exists()){
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/*if(!f1.exists()){
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f1.createNewFile();//这个需要是空括号，执行创建新文件的功能
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}else{
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f1.delete();
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}
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}*/
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}
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}

‎JavaBase/src/com/xinan/io01/ReadObject.java‎

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public class ReadObject {
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public static void main(String[] args){
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try{
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/*try{
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ObjectInputStream ois=new ObjectInputStream(fis);
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}
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catch(){
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//catch(){
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}
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}*/
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}
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}

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