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  • java io流之int数组数据的插入与取出

    java io流大家都非常熟悉吧,有时候假设用的不熟,对于数据的处理真的非常头疼,以下是对与int数组的处理。

    以下是代码:

    public class Stream {
        private int a[];
        private BufferedWriter bufferedWriter;
        private BufferedReader bufferedReader;
        private String pathName="e:\stream.txt";
    	
    	private void random(){
    		Random random=new Random(10000);
    		a=new int[10000];
    		for(int i=0;i<a.length;i++){
    			a[i]=random.nextInt(10000);
    		}
    	}
        
    	private void write(){
    		String write=intToString(a);
    		try {
    			bufferedWriter=new BufferedWriter(new FileWriter(pathName));
    			bufferedWriter.write(write);
    			bufferedWriter.close();
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    	}
    	
    	private void read(){
    		try {
    			bufferedReader=new BufferedReader(new FileReader(pathName));
    			String read=bufferedReader.readLine();
    			int[] array=stringToInt(read);
    			for(int i=0;i<array.length;i++){
    				System.out.println(array[i]);
    			}
    		} catch (FileNotFoundException e) {
    			e.printStackTrace();
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    	}
    	
    	private String intToString(int[] a){
    		StringBuilder stringBuilder=new StringBuilder();
    		for(int i=0;i<a.length;i++){
    			stringBuilder.append(a[i]).append(",");
    		}
    		stringBuilder.deleteCharAt(stringBuilder.length()-1);
    		return stringBuilder.toString();
    	}
    	
    	private int[] stringToInt(String str){
    		String[] strAry = str.split(",");
    		int[] ary=new int[strAry.length];
    		for(int i=0;i<strAry.length;i++){
    			ary[i]=Integer.parseInt(strAry[i]);
    		}
    		return ary;
    	}
    	
    	public static void main(String[] args){
            Stream stream =new Stream();
            stream.random();
            stream.write();
            stream.read();
        }
    }
    
    这里对于int数组的处理是增加一个“,”隔开,然后用String的split()处理,希望对大家有所帮助。

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  • 原文地址:https://www.cnblogs.com/mfrbuaa/p/4254910.html
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