java作业（陈旭东）面向对象与设计

import javax.swing.JOptionPane; public class MyOwnJavaArray { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub String[]firstnameArray = new String[3]; String[]lastnameArray = new String[3]; //create two arrays for(int i=0;i<3;i++){ firstnameArray[i] = JOptionPane.showInputDialog("Enter one person's firstname:"); lastnameArray[i] = JOptionPane.showInputDialog("Enter one person's lastname:"); //put in the data } int lengthOfFirstNameOfPerson1 = firstnameArray[0].length(); int lengthOfFirstNameOfPerson2 = firstnameArray[1].length(); int lengthOfFirstNameOfPerson3 = firstnameArray[2].length(); if(lengthOfFirstNameOfPerson1 >=lengthOfFirstNameOfPerson2&&lengthOfFirstNameOfPerson1>=lengthOfFirstNameOfPerson3) System.out.println(firstnameArray[0]+"."+lastnameArray[0]); if(lengthOfFirstNameOfPerson2 >lengthOfFirstNameOfPerson1&&lengthOfFirstNameOfPerson2>=lengthOfFirstNameOfPerson3) System.out.println(firstnameArray[1]+"."+lastnameArray[1]); if(lengthOfFirstNameOfPerson3 >lengthOfFirstNameOfPerson1&&lengthOfFirstNameOfPerson3>lengthOfFirstNameOfPerson2) System.out.println(firstnameArray[2]+"."+lastnameArray[2]); } }