我如何按字母顺序放置数组？

Question

我无法弄清楚如何按字母顺序放置String[][]商店阵列，查看第二栏，其中包括礼品，学习用品教科书和校园装备。
我非常感谢你的帮助。

**

 String[][] store = {       
            {"Alumni Drink ware", "Gifts", "$25.00"},  
            {"Binders", "School Supplies", "$3.00"},  
            {"Book bag", "School Supplies", "$20.00"},  
            {"Fabulous Desserts", "Textbooks", "$25.00"},  
            {"Folders", "School Supplies", "$1.00"},  
            {"Gift Cards", "Gifts", "$25.00"},  
            {"Highlighters", "School Supplies", "$2.00"},  
            {"Jacket", "Campus Gear", "$65.00"},  
            {"JAVA Programming", "Textbooks", "$150.00"},  
            {"Network Solutions", "Textbooks", "$75.00"},  
            {"Pencils", "School Supplies", "$1.00"},  
            {"Pens", "School Supplies", "$2.00"},  
            {"Shorts", "Campus Gear", "$10.00"},  
            {"Sweatshirts", "Campus Gear", "$40.00"},  
            {"T-shirts", "campus Gear", "$15.00"},  
            {"Web Design Ideas", "Textbooks", "$55.00"}};  

**这是我的数组在显示时的外观。我试图对第二列进行排序或使用它对数组进行排序。 **

   Alumni Drink ware                   Gifts                  $25.00    
             Binders         School Supplies                   $3.00    
            Book bag         School Supplies                  $20.00    
   Fabulous Desserts               Textbooks                  $25.00    
             Folders         School Supplies                   $1.00    
          Gift Cards                   Gifts                  $25.00    
        Highlighters         School Supplies                   $2.00    
              Jacket             Campus Gear                  $65.00    
    JAVA Programming               Textbooks                 $150.00    
   Network Solutions               Textbooks                  $75.00    
             Pencils         School Supplies                   $1.00    
                Pens         School Supplies                   $2.00    
              Shorts             Campus Gear                  $10.00    
         Sweatshirts             Campus Gear                  $40.00    
            T-shirts             campus Gear                  $15.00    
    Web Design Ideas               Textbooks                  $55.00