public class Balance {
public static void main(String[] args) {
System.out.printf("%.2f\n", balance(0.0, 0.0, 0.0));
}
/**
* @param principal
* @param rate
* @param years
* @return
*/
public static double balance(double principal, double rate, double years) {
double amount = 0;
Scanner sc = new Scanner(System.in);
System.out.print("Enter the initial investment amount: ");
principal = sc.nextDouble();
System.out.print("Enter the interest rate: ");
rate = sc.nextDouble();
System.out.print("Enter the number of years: ");
years = sc.nextDouble();
for (int i = 1; i < …我目前正在编写一个从txt文件中读取记录的程序,并在屏幕上打印数据:
GRADE REPORT
NAME COURSE GRADE
-----------------------------------------------------------
JOE FRITZ AMERICAN GOVERNMENT B
CALCULUS I A
COMPUTER PROGRAMMING B
ENGLISH COMPOSITION A
Total courses taken = 4
LANE SMITH FUND. OF DATA PROCESSING B
INTERMEDIATE SWIMMING A
INTRO. TO BUSINESS C
Total courses taken = 3
JOHN SPITZ CHOIR C
COLLEGE STATISTICS B
ENGLISH LITERATURE D
INTRO. TO BUSINESS B
Total courses taken = 4
Total courses taken by all students = 11
Run complete. Press the Enter key to exit. …