08 2016 档案
摘要:package com.xuexi.IO; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputSt...
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摘要:package com.xuexi.IO; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IO...
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摘要:package com.xuexi.IO; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class FileInputStreamTest { publi...
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摘要:package com.xuexi.IO; import java.io.File; import java.io.IOException; public class FileTest { public static void main(String[] args) { File file = new File("E:","2016.txt"); S...
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摘要:public static void main(String[] args) { Artist artist; artist = new ViolinArtist();//(向上转型)ViolinArtist为子类,父类引用子类对象 损失自己特有的属性和方法 artist.make();//调用的子类的方法 //artist...
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摘要:1 package com.qingdaoligong.jierui; 2 public class CustomerBiz { 3 String[] shuzu = new String[5]; 4 int j; 5 boolean qw = false;//定义一个布尔变量 6 boolean qw1 = false;//定义一个布尔变量 7 ...
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摘要:package zhuoxiang; import java.util.Scanner; public class GongYueshuo { public static void main(String[] args) { Scanner input=new Scanner(System.in); System.out.println("输入第一个数"); in...
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摘要:package com.qingdaoligong.jierui; public class MiaoShu { // 定义类 String name; int age; double height; double weight; String sex; String ideas; public void zhaohu(...
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摘要:String str="qwerwer"; int index=str.indexOf('w'); System.out.println(index);// 结果是1 String str1="we"; int index1=str1.indexOf('w'); System.out.println(index1...
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