{"id":8660,"date":"2012-09-25T21:41:03","date_gmt":"2012-09-25T16:11:03","guid":{"rendered":"https:\/\/2thenew.online\/blog\/?p=8660"},"modified":"2012-09-25T21:49:49","modified_gmt":"2012-09-25T16:19:49","slug":"changing-the-order-of-the-elements-of-list-in-random-manner","status":"publish","type":"post","link":"https:\/\/2thenew.online\/blog\/changing-the-order-of-the-elements-of-list-in-random-manner\/","title":{"rendered":"Changing the order of the elements of List in random manner"},"content":{"rendered":"

I found a very interesting method in java to change the order of elements in a list randomly, also called shuffling of elements in list.
\n
\nActually I got the requirement to show a random product details out of 5 products, each time user refreshes the page. I came out with the solution using Collections.shuffle(<list>)<\/strong>
\n
\nFor understanding, lets assume, we have Product class. Each product has a name and its corresponding price.<\/p>\n

[java]
\nclass Product{
\n String name
\n Float price
\n }<\/p>\n

\/\/ Six different products
\nProduct product1 = new Product(name:"TV",price:30000)
\nProduct product2 = new Product(name:"Refrigerator",price:20000)
\nProduct product3 = new Product(name:"Radio",price:2000)
\nProduct product4 = new Product(name:"Washing Machine",price:20000)
\nProduct product5 = new Product(name:"Fan",price:1000)
\nProduct product6 = new Product(name:"AC",price:20000)<\/p>\n

\/\/List of above products
\nList products = [product1,product2,product3,product4,product5,product6]<\/p>\n

println products*.name
\n\/\/Output : [TV, Refrigerator, Radio, Washing Machine, Fan, AC]<\/p>\n

Collections.shuffle(products)<\/p>\n

println products*.name
\n\/\/ Output : [Washing Machine, Refrigerator, AC, Fan, Radio, TV]
\n[\/java]<\/p>\n

Hope it will help!!<\/p>\n","protected":false},"excerpt":{"rendered":"

I found a very interesting method in java to change the order of elements in a list randomly, also called shuffling of elements in list. Actually I got the requirement to show a random product details out of 5 products, each time user refreshes the page. I came out with the solution using Collections.shuffle(<list>) For […]<\/p>\n","protected":false},"author":29,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":5,"footnotes":""},"categories":[1],"tags":[1076,1075,1074],"class_list":["post-8660","post","type-post","status-publish","format-standard","hentry","category-technology","tag-list","tag-random-order","tag-shuffle"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t