[Java] [Exer4] tính lãi xuất ngân hàng

/**
* cusomized by: mathhoang
* Y!M: vietnam_hoangminhnguyen@yahoo.com
* addr: http://mathhoang.blogspot.com
* subject: java tutorials source code
*/
package Exercise3;

public class Exer3 {
 private static final int START_RATE = 10;
 private static final int NRATES = 6;
 private static final int NYEARS = 10;
 
 public static void main(String[] argv) {
  double[] interestRate = new double[NRATES];
  for (int i = 0; i < interestRate.length; i++) {
   interestRate[i] = (START_RATE + i)/ 100.0;
  }
   
  double[][] balances = new double[NYEARS][NRATES];
  
  // set initial balances to 10000
  for (int i = 0; i < balances[0].length; i++) {
   balances[0][i] = 10000;
  }
  
  // compue interest for future years
  for (int i = 1; i < balances.length; i++){
   for (int j = 0; j < balances[i].length; j++){
    double oldBalance = balances[i - 1][j];
    
    double interest = oldBalance * interestRate[j];
    
    balances[i][j] = oldBalance + interest;
   }
   
  }
  
  // print one row of interest rates
  for (int i = 0; i < interestRate.length; i++){
   System.out.printf("%9.0f%%", 100 * interestRate[i]);
  }
  
  System.out.println();
  
  // print balance table
  for (double[] row: balances) {
   for (double b: row){
    System.out.printf("%10.2f", b);
   }
   
   System.out.println();
  }
 
 }
 
}

---
name: nguyen minh hoang
Y!M : vietnam_hoangminhnguyen@yahoo.com
net name: mathhoang