;
} }}
¡¾³ÌÐò50¡¿
ÌâÄ¿£ºÓÐÎå¸öѧÉú£¬Ã¿¸öѧÉúÓÐ3Ãſεijɼ¨£¬´Ó¼üÅÌÊäÈëÒÔÉÏÊý¾Ý£¨°üÀ¨Ñ§ÉúºÅ£¬ÐÕÃû£¬ÈýÃſγɼ¨£©£¬¼ÆËã³öƽ¾ù³É¼¨£¬°ÑÔÓеÄÊý¾ÝºÍ¼ÆËã³öµÄƽ¾ù·ÖÊý´æ·ÅÔÚ´ÅÅÌÎļþ ¡°stud ¡°ÖС£
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();
}
}}
µÚ1¸öÈË10£¬µÚ2¸ö±ÈµÚ1¸öÈË´ó2Ë꣬ÒÀ´ÎµÝÍÆ£¬ÇëÓõݹ鷽ʽ¼ÆËã³öµÚ8¸öÈ˶à´ó
public class A1 {
public static void main(String [] args)
{
System.out.println(computeAge(8));
}
public static int computeAge(int n)
{
if(n==1) return 10;
return computeAge(n-1) + 2;
}
}
public static void toBinary(int n,StringBuffer result)
{
if(n/2 != 0)
toBinary(n/2,result);
result.append(n%2); }