package?com.just;
import?java.util.Scanner;
public?class?Demod2?{
public?static?void?main(String[]?args){
?int?classNum=3;
?int?stuNum=4;
?double?sum=0;
?double?avg=0;
?Scanner?input=new?Scanner(System.in);
?for(int?i=1;i<=classNum;i++){
??System.out.println("***請(qǐng)輸入第"+i+"班級(jí)***");
??for(int?j=1;j<=stuNum;j++){
???System.out.println("請(qǐng)輸入第"+j+"名學(xué)員的成績(jī)");
???int?score=input.nextInt();
???sum+=score;
??}
??avg=sum/stuNum;
??System.out.println("第"+i+"個(gè)班級(jí)學(xué)員的平均分為："+avg);
?}
}
}
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