十四.带参数的方法

public class Customer {
    String[] names = new String[5];

    public void addStudent(String name) {
        for (int i = 0; i < names.length; i++) {
            if (names[i] == null) {
                names[i] = name;
                break;
            }
        }
    }

    public boolean editName(String newname, String oldname) {
        boolean find = false;
        for (int i = 0; i < names.length; i++) {
            if (names[i].equals(oldname)) {
                names[i] = newname;
                find = true;
                break;
            }
        }
        return find;
    }

    public void show() {
        System.out.println("************************");
        System.out.println("\t客户姓名列表:");
        System.out.println("************************");
        for (int i = 0; i < names.length; i++) {

            System.out.print(names[i] + "\t");

        }

    }
}

import java.util.Scanner;

public class TextCust {

    public static void main(String[] args) {
        Scanner input=new Scanner(System.in);
        Customer a=new Customer();
        for(int i=0;i<5;i++){
            System.out.print("请输入客户姓名:");
            String name=input.next();
            a.addStudent(name);
        }
        a.show();
        System.out.println("");
        System.out.print("请输入要修改的客户姓名:");
        String oldname=input.next();
        System.out.print("请输入新的客户姓名:");
        String newname=input.next();
        boolean editName =a.editName(newname, oldname);
        if(editName){
            System.out.println("*****修改结果*****");
            System.out.println("找到并修改成功!");
            a.show();
        }else{
            System.out.println("未找到要修改的客户!");
        }
    }
}