<\/p>\n
import java.util.List;\r\nimport java.util.ArrayList;\r\n\r\npublic class SortTest1 {\r\n\r\n public static void main(String[] args) {\r\n\r\n List<Person> people = new ArrayList<>();\r\n people.add(new Person(\"Alice\", 30));\r\n people.add(new Person(\"Bob\", 19));\r\n people.add(new Person(\"Ronald\", 40));\r\n people.add(new Person(\"Jimi\", 27));\r\n people.add(new Person(\"Suzan\", 60));\r\n people.add(new Person(\"Jeff\", 80));\r\n people.add(new Person(\"Maria\", 52));\r\n\r\n \/\/ sort by name\r\n people.sort((p1, p2)->p1.getName().compareTo(p2.getName()));\r\n System.out.println(people);\r\n \/\/ [name:Alice age:30, name:Bob age:19, name:Jeff age:80, name:Jimi age:27, name:Maria age:52, name:Ronald age:40, name:Suzan age:60]\r\n\r\n \/\/ sort by age\r\n people.sort((p1, p2)->p1.getAge().compareTo(p2.getAge()));\r\n System.out.println(people);\r\n \/\/ [name:Bob age:19, name:Jimi age:27, name:Alice age:30, name:Ronald age:40, name:Maria age:52, name:Suzan age:60, name:Jeff age:80]\r\n\r\n }\r\n}\r\n\r\nclass Person {\r\n\r\n private String name;\r\n private Integer age;\r\n\r\n public Person(String name, Integer age) {\r\n this.name = name;\r\n this.age = age;\r\n }\r\n\r\n public Integer getAge() {\r\n return age;\r\n }\r\n\r\n public String getName() {\r\n return name;\r\n }\r\n\r\n public String toString() {\r\n return \"name:\" + name + \" age:\" + age;\r\n }\r\n<\/pre>\n<\/div>\n <\/p>\n","protected":false},"excerpt":{"rendered":"