编写java程序将10个整数写入一个文件中，然后再从该文件中将10个数读出并显示 求教导！ java ：从一个文本文件中读取所有字符，并输出。求大神指教
java\u7a0b\u5e8f\u6c42\u6559 \u7f16\u5199\u4e00\u4e2a\u7a0b\u5e8f\u5b9e\u73b0\u6bcf\u9694\u4e00\u79d2\u6309\u987a\u5e8f\u4f9d\u6b21\u8f93\u51faABCD\uff0c\u4f9d\u6b21\u5faa\u73af\u6309\u7167\u4f60\u7684\u8981\u6c42\u7f16\u5199\u7684Java\u7a0b\u5e8f\u5982\u4e0b:
public class BC { public static void main(String[] args) { Thread_1 t=new Thread_1(); t.start(); }}class Thread_1 extends Thread{ int i=0; public void run(){ while(true){ System.out.print((char)('A'+i)); try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } if(i==25){ i=0; }else{ i++; } } }}\u8fd0\u884c\u7ed3\u679c:
ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHI
public static void main(String[] args) {
try {
FileReader fileReader = new FileReader("C:/Users/hsh/Desktop/a.wsdl");
BufferedReader bufferedReader = new BufferedReader(fileReader);
String result = null;
while(bufferedReader.ready()){
result += bufferedReader.readLine();
}
System.out.println(result);
fileReader.close();
} catch (FileNotFoundException e) {
System.out.println("\u6587\u4ef6\u8def\u5f84\u4e0d\u5bf9\uff0c\u8bf7\u6838\u5bf9!");
} catch (IOException e) {
System.out.println("\u8f93\u5165\u8fc7\u7a0b\u4e2d\u610f\u5916\u5730\u5230\u8fbe\u6587\u4ef6\u5c3e\u6216\u6d41\u5c3e");
}
}
public class Demo1 {
public static void main(String[] args) {
FileOutputStream fos=null;
FileInputStream fis=null;
File f=new File("E:\\a.txt");
//判断文件是否存在
if(!f.exists())
{
try {
f.createNewFile();//如果文件不存在则创建此文件
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else{
System.out .println("此文件已经存在了");
}
InputStreamReader isr=new InputStreamReader(System.in);
BufferedReader br=new BufferedReader(isr);
try {
fos=new FileOutputStream(f);
String s=br.readLine();//从键盘输入数据
fos.write(s.getBytes());//将数据写入到文件里
fis=new FileInputStream(f);
//定义一个字节数组,相当于缓存
byte bytes[]=new byte[1024];
int n=0;//实际读取到的字节数
//循环读取
while((n=fis.read(bytes))!=-1)
{
//把字节转成string
String s1=new String(bytes, 0, n);
System.out.println(s1);//显示文件内容
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
绛旓細浠ｇ爜濡備笅锛氬凡缁忚冭檻鍒拌緭鍏ラ敊璇殑鎯呭喌锛岃緭鍏ョ殑涓嶆槸鏁存暟鎴栬呮槸瀛楁瘝闇瑕侀噸鏂拌緭鍏ャ俰mport java.util.Scanner;public class Test {public static void main(String [] args){int[] arr = new int[10];for (int i = 0; i < arr.length; i++) {System.out.print("璇疯緭鍏ョ"+(i+1) + "涓...
绛旓細package com.prac;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class Prac7 {public static void main(String[] args){BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int arr[]=new int[10]; for(int i=0;i...
绛旓細瀹炵幇鎬濊矾灏辨槸鍏堣緭鍏10涓int绫诲瀷鐨勫弬鏁帮紝涔嬪悗寰幆鍒ゆ柇鎵惧埌鏈澶у煎拰鏈灏忓硷紝淇濆瓨璧锋潵鍜屽叾浠栫殑鍊艰繘琛屾瘮杈冦備唬鐮佸涓嬶細public class Test{ public static void main(String args[]){ int i,min,max;int A[] = new int[10];Scanner input=new Scanner(System.in);for(int j=0,j<10;j++){//...
绛旓細public class TestBaiduKnow {public static void main(String[] args) {int[] a = { 9, 8, 7, 10, 6, 5, 4, 3, 2, 1 };System.out.println("鍘熷鏁扮粍锛");for (int i = 0; i < a.length; i++)System.out.print(a[i] + " ");for (int i = 0; i < a.length; ...
绛旓細import java.util.InputMismatchException;import java.util.Scanner;public class Dog { public static void main(String[] args) { int[] numbers = new int[10];for (int i = 1; i <= 10; i++) { try { System.out.println("Please input an integer(total 10 numbers): ");Scanner...
绛旓細import java.util.Random;//璇存槑锛 缂栧啓涓绋嬪簭锛岄殢鏈轰骇鐢10涓暣鏁锛屾斁鍒颁竴鏁扮粍涓紝鎵撳嵃杈撳嚭骞冲潎鍊笺俻ublic class shiyan14 { public static void main(String []arrgs){ Random random=new Random();int[] a=new int[10];int sum=0;for (int i = 0; i < a.length; i++){ a[i]=...
绛旓細鎸夌収浣犵殑瑕佹眰渚濇杈撳叆10涓姝ｆ暣鏁,姣忚緭鍏ヤ竴涓暣鏁灏辫繘琛屾帓搴忕殑Java绋嬪簭濡備笅 import java.util.Scanner;public class J { public static void bubblesort(int[] arr,int n){ for(int i=0;i<n-1;i++){ for(int j=0;j<n-1-i;j++){ if(arr[j]>arr[j+1]){ int temp=arr[j];arr[...
绛旓細//璇存槑涓:绋嬪簭鍐鐨勭◢寰湁浜涘暟鍡,鏈夌偣鐢昏泧娣昏冻鐨勬劅瑙//鐩殑鑰冭檻鍒,杈撳叆鐨勬暟瀛楄繃澶ф垨鑰呰繃灏,鎴栬呰緭鍏ヤ簡瀛楁瘝鎴栬呭叾浠栧瓧绗!//杩涜浜嗗垽鏂,濡傛灉杈撳叆鏈夎浼,杩斿洖璁╃户缁緭!import java.util.Scanner;import java.util.Arrays;public class CountTest {static Scanner sc = new Scanner(System.in);static ...
绛旓細import java.util.ArrayList;import java.util.List;import java.util.Random;public class Rand {public static void main(String[] args) {List<Integer> li = new ArrayList<Integer>();for(int i=0;i<10;i++){int r = new Random().nextInt(10);li.add(r);}for (Integer i: li) ...
绛旓細)Dim max As Integer Dim min As Integer Dim a(10) As Integer For i = 0 To 9 a(i) = InputBox("璇疯緭鍏ョ" & i + 1 & "涓暣鏁锛")Print "a(" & i & ")=" & a(i)Next i Call MaxMin(a(), 9, max, min)Print "max=" & max Print "min=" & min End Sub ...
