Reputation: 67
I create alist method to insert principal values and remaining balances according to the payments.But when I implement this method in actionListner method error occurs(EventDispatchThread Execption).I try to solve it.Please give any help for me to solve this.
public class Loan {
float lamt,irate,inst,lbalance;
int duration,nop;
String amtlist[][] = new String[duration+1][5];
Loan(float lamt, float irate, int duration, int nop) {
this.lamt = lamt;
this.irate = irate;
this.duration = duration;
this.nop = nop;
}
public void alist() {
amtlist[0][0] = "0" ;
amtlist[0][1] = "0";
amtlist[0][2] = "0";
amtlist[0][3] = "0";
amtlist[0][4] = Float.toString(inst*annuity(duration,irate));
float v = 1 / (1 + irate);
for (int i = 1; i < duration + 1; i++) {
amtlist[i][0] = Float.toString(i);
amtlist[i][1] = Float.toString(irate * annuity(duration + 1 - i, irate));
amtlist[i][2] = Float.toString(instalment());
amtlist[i][3] = Double.toString(instalment() * Math.pow(v, i));
amtlist[i][4] = Float.toString(instalment() * annuity(duration - i, irate));
}
}
public float annuity(int duration, float irate) {
float v = 1 / (1 + irate);
float an = (float) ((1 - Math.pow(v, duration)) / irate);
return an;
}
public float instalment(){
return inst = lamt / annuity(duration, irate);
}
public float lbalance() {
return lbalance = inst * annuity(duration - nop, irate);
}
}
public void actionPerformed(ActionEvent e) {
String lamtstr = tf1.getText();
String iratestr = tf2.getText();
String durationstr = tf3.getText();
String nopstr = tf4.getText();
float lamt = Float.parseFloat(lamtstr);
float irate = Float.parseFloat(iratestr);
int duration = Integer.parseInt(durationstr);
int nop = Integer.parseInt(nopstr);
Loan l = new Loan(lamt, irate, duration, nop);
float inst = 0, balance = 0;
if (e.getSource() == b1) {
inst =l.instalment();
balance =l.lbalance();
}
if (e.getSource() == b2) {
l.alist();
fscr.dispose();
new AmTable(l.amtlist);
}
tf5.setText(String.valueOf(inst));
tf6.setText(String.valueOf(balance));
}
I tried solve it by changing alist
method to value returning method but my attempt got vain.
if (e.getSource() == b2) {
l.alist();
fscr.dispose();
new AmTable(l.amtlist);
}
I expected to call AmTable function with amlist array.
Upvotes: 0
Views: 32