java中int数组添加数据_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[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

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

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

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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