interest.java

北京邮电大学牛导的 JAVA课件课件及相关资料

//某人在银行存了15万，利率为2.5％每年，求10年的存款额
import javax.swing.JOptionPane;
import javax.swing.JTextArea;
import java.util.Locale;
import java.text.NumberFormat;
public class Interest {
    
    public static void main(String[] args) 
    {
        String inputmoney, index;
        JTextArea indexarea;
        int counter;
        double input, year, interest[];
        inputmoney = JOptionPane.showInputDialog("请输入你需要的存额:");
        input = Double.parseDouble(inputmoney);
        interest = new double[10];
        year = 1;
        index = " year" + "\t" + "Interest" + "\n";
        NumberFormat mf = NumberFormat.getCurrencyInstance();
        for(counter = 0; counter< 10; counter++)
        {
            interest[counter] = input * Math.pow(1+0.025,counter+1);
            
            index = index + (counter+1) + "\t" + mf.format(interest[counter]) + "\n";
        }
        indexarea = new JTextArea();
        indexarea.setText(index);
        JOptionPane.showMessageDialog(null,indexarea,"Interest",JOptionPane.INFORMATION_MESSAGE);
        System.exit(0);
            
    }
    
}