第6周作业3-Fibonacci数列

import javax.swing.*;

public class Fibonacci {
public static void main(String[] args) {
int n;
String s=(String)JOptionPane.showInputDialog(null,"请输入运行次数","Fibonacci数列",
JOptionPane.PLAIN_MESSAGE,null,null,null);
n=Integer.parseInt(s);
{
int i=1,j=1,k;
int f=0;
System.out.println("F("+1+")="+i);
System.out.println("F("+2+")="+j);
for(k=3;k<=n;k++)
{
f=i+j;
i=j;
j=f;
System.out.println("F("+k+")="+f);
}
}
}
}