public class Math{
//æææ绩æ°ç»åå
¶å¯¹åºçæéæ°ç»
private double[] scores;
private double[] weights;
//æé å½æ°
public Math(double[] scores,double[] weights){
this.scores = scores;
this.weights = weights;
}
//计ç®æ绩综å
public double sum(){
double sum = 0;
for(double score: scores){
sum += score;
}
return sum;
}
//计ç®å æå¹³åå
public double weightAvg(){
double sum = 0;
for(int i=0; i<scores.length; i++){
sum += scores[i]*weights[i];
}
return ((double)(int)((sum/scores.length)*10))/10;//ç»æä¹ä»¥10å¨è½¬å为intåå°±å»æäºåé¢ææå°æ°ï¼å转å为doubleé¤ä»¥10å°±æ¯ä¿çä¸ä½å°æ°äº
}
//å¹³å绩ç¹ä¸ç¥éä»ä¹ææï¼ç»åºç®æ³å°±è½åç¨åº
}
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