关于Scanner读入数据

比较一下两段代码。参考https://www.zhihu.com/question/469282210

public void testInsertCustomer(){
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入用户名：");
        String name = scanner.next();
        System.out.println("请输入邮箱：");
        String email = scanner.next();
        System.out.println("请输入生日：");
        String birthday = scanner.next();
        
        String sql = "insert into customers(name,email,birth)values(?,?,?)";
        int flag = update(sql,name,email,birthday);
        if(flag > 0){
            System.out.println("添加成功");
            
        }else{
            System.out.println("添加失败");
        }
        
    }

?

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public void testInsert(){         Scanner scanner = new Scanner(System.in);         System.out.print("请输入用户名：");         String name = scanner.next();         System.out.print("请输入邮箱：");         String email = scanner.next();         System.out.print("请输入生日：");         String birthday = scanner.next();//'1992-09-08'                   String sql = "insert into customers(name,email,birth)values(?,?,?)";         int insertCount = update(sql,name,email,birthday);         if(insertCount > 0){             System.out.println("添加成功");                       }else{             System.out.println("添加失败");         }               }