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import java.io.*; public class TestInputStreamReader{ public static void main(String[] args){ try{ InputStreamReader isr = new InputStreamReader(Syste 阅读全文
posted @ 2020-03-03 10:05
yxfyg
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import java.io.*; public class TestBufferedReader{ public static void main(String[] args){ try{ BufferedReader br = new BufferedReader(new FileReader( 阅读全文
posted @ 2020-03-02 15:57
yxfyg
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import java.io.*; public class TestFileOutputStream{ public static void main(String[] args){ try{ FileOutputStream out = new FileOutputStream("D:/Java 阅读全文
posted @ 2020-03-02 11:43
yxfyg
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import java.io.*; public class TestFileInputStream{ public static void main(String[] args){ FileInputStream in = null; try{ in = new FileInputStream(" 阅读全文
posted @ 2020-03-02 11:06
yxfyg
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import java.io.*; public class FileList{ void tree(File file , int level){ String str = ""; for(int i=0;i<level;i++){ str += " "; } File[] list = file 阅读全文
posted @ 2020-03-01 19:59
yxfyg
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import java.io.*; public class CreateFile{ public static void main(String[] args){ String[] str = new String[6]; str[0] = "D:/A/B/E"; str[1] = "D:/A/B 阅读全文
posted @ 2020-03-01 10:44
yxfyg
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public class StringToArray{ public static void main(String[] args){ String str = "2,6;6,9,3;2,6,3,7"; String[] first = str.split(";"); int[][] array = 阅读全文
posted @ 2020-02-26 20:49
yxfyg
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public class CountJava{ public static void main(String[] args){ String str = "dnajjavaNISLjavaERBjavafvsbdjavaFALjavaEUIcjavazs"; int count = 0; int i 阅读全文
posted @ 2020-02-26 11:27
yxfyg
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public class ClassfiedChar{ public static void main(String[] args){ String str = "ahGJ;j:NLKn;[][]mpon;l()mp'mUIGGUILB"; char[] array = str.toCharArra 阅读全文
posted @ 2020-02-26 10:48
yxfyg
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public class BinarySearch{ int[] a = {6,9,4,14,3,2,1,8,9,12,10,5,7}; void bubbleSort(int[] a){ if(a.length == 0){ System.out.println("错误!数组长度不能为0"); S 阅读全文
posted @ 2020-02-26 09:47
yxfyg
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