public static void main(String args[]) {
Vector bb = new Vector(); bb.addElement("3");
bb.addElement("5");
bb.addElement("6");
bb.addElement("7");
bb.addElement("12"); int n = 0;
for(int j=0;j<bb.size();j++){
n = n+Integer.parseInt((String)bb.get(j));
System.out.println((String)bb.get(j));
}
n = n/bb.size();
System.out.println(n);
}
简单写了一下,可以参考参考
Vector bb = new Vector(); bb.addElement("3");
bb.addElement("5");
bb.addElement("6");
bb.addElement("7");
bb.addElement("12"); int n = 0;
for(int j=0;j<bb.size();j++){
n = n+Integer.parseInt((String)bb.get(j));
System.out.println((String)bb.get(j));
}
n = n/bb.size();
System.out.println(n);
}
简单写了一下,可以参考参考
Vector v = new Vector();
v.add("2");
v.add("64");
v.add("88");
System.out.println(getAverage(v));
}
private static float getAverage(Collection c) {
float sum = 0;
for (Iterator iter = c.iterator(); iter.hasNext();) {
String obj = (String)iter.next();
sum += Float.parseFloat(obj);
}
return sum/c.size();
}
public class Average{
public static void main(String[] args){
Vector v = new Vector();
v.add("1");
v.add("2");
v.add("4");
double total=0.0d;
double average;
for(int i=0;i<v.size();i++){
total += Float.parseFloat((String)v.get(i));
}
average = total/v.size();
System.out.println(average);
}
}