计算银行获取的所得利息 怎么去求呀 怎么把(num -sum1)弄成小数点后两位呀????
import com.sun.xml.internal.ws.api.pipe.SyncStartForAsyncFeature;
import java.util.Scanner;
public class bank
{
public static double interest=2.65;//利息
public void rise()
{
interest = interest+0.5;
}
public static void main(String[] args)
{
bank pool = new bank();
System.out.println("当前银行死期年利率为"+interest+"%");
System.out.println("请输入存款本金");
Scanner sc = new Scanner(System.in);
double num = sc.nextDouble();
System.out.println("请输入存款年限");
double year = sc.nextDouble();
double sum1 = num;
for (int i = 1;i<=year;i++)
{
num = num+((num/100)*2.65);
}
System.out.println("5年后,存入20000元所获利息为"+(num -sum1));
}
}