ort java.io.*; import java.util.*; public class lianxi50 { public static void main(String[] args){ Scanner ss = new Scanner(System.in); String [][] a = new String[5][6]; for(int i=1; i<6; i++) { System.out.print(¡°ÇëÊäÈëµÚ¡±+i+¡±¸öѧÉúµÄѧºÅ£º¡±); a[i-1][0] = ss.nextLine(); System.out.print(¡°ÇëÊäÈëµÚ¡±+i+¡±¸öѧÉúµÄÐÕÃû£º¡±); a[i-1][1] = ss.nextLine(); for(int j=1; j<4; j++) { System.out.print(¡°ÇëÊäÈë¸ÃѧÉúµÄµÚ¡±+j+¡±¸ö³É¼¨£º¡±); a[i-1][j+1] = ss.nextLine(); } System.out.println(¡°\n¡±); } //ÒÔϼÆËãƽ¾ù·Ö float avg; int sum; for(int i=0; i<5; i++) { sum=0; for(int j=2; j<5; j++) { sum=sum+ Integer.parseInt(a[i][j]); } avg= (float)sum/3; a[i][5]=String.valueOf(avg); } //ÒÔÏÂд´ÅÅÌÎļþ String s1; try { File f = new File(¡°C:\\stud¡±); if(f.exists()){ System.out.println(¡°Îļþ´æÔÚ¡±); }else{ System.out.println(¡°Îļþ²»´æÔÚ£¬ÕýÔÚ´´½¨Îļþ¡±); f.createNewFile();//²»´æÔÚÔò´´½¨ } BufferedWriter output = new BufferedWriter(new FileWriter(f)); for(int i=0; i<5; i++) { for(int j=0; j<6; j++) { s1=a[i][j]+¡±\r\n¡±; output.write(s1); } } output.close(); System.out.println(¡°Êý¾ÝÒÑдÈëcÅÌÎļþstudÖУ¡¡±); } catch (Exception e) { e.printStackTrace(); } } }
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