TestUser
package com.example.helloword.demo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@NoArgsConstructor
@AllArgsConstructor
public class TestUser {
private Integer id;
private String mame;
private Integer age;
}
Demo
package com.example.helloword.demo;
import lombok.extern.slf4j.Slf4j;
import net.sf.json.JSON;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
@Slf4j
public class HellowordDemo {
/**
* [TestUser(id=0, mame=闫文超0, age=8),
* TestUser(id=1, mame=闫文超1, age=16),
* TestUser(id=2, mame=闫文超2, age=7),
* TestUser(id=3, mame=闫文超3, age=4),
* TestUser(id=4, mame=闫文超4, age=4),
* TestUser(id=5, mame=闫文超5, age=23),
* TestUser(id=6, mame=闫文超6, age=16),
* TestUser(id=7, mame=闫文超7, age=21),
* TestUser(id=8, mame=闫文超8, age=13),
* TestUser(id=9, mame=闫文超9, age=13)]
*
* ===?[TestUser(id=0, mame=闫文超0, age=8),
* TestUser(id=1, mame=闫文超1, age=16),
* TestUser(id=2, mame=闫文超2, age=7),
* TestUser(id=3, mame=闫文超3, age=4),
* TestUser(id=4, mame=闫文超4, age=4),
* TestUser(id=5, mame=闫文超5, age=23),
* TestUser(id=7, mame=闫文超7, age=21),
* TestUser(id=8, mame=闫文超8, age=13),
* TestUser(id=9, mame=闫文超9, age=13)]
*
* @param args
*/
public static void main(String[] args) {
List<TestUser> userList = getUserList();
log.info("userList=====>" + userList);
List<TestUser> arrayList = new ArrayList<>();
List<TestUser> arrayList11 = new ArrayList<>();
for (TestUser user : userList) {
if (user.getId() % 2 == 0) {
if (user.getAge() > 15) {
arrayList11.add(user);
continue;
}
}
arrayList.add(user);
}
System.out.println("===?" + arrayList.toString());
System.out.println("===>>>>>-------" + arrayList11.toString());
}
private static List<TestUser> getUserList() {
List<TestUser> list = new ArrayList<>();
//插入用户
for (int i = 0; i < 20; i++) {
TestUser user = new TestUser();
user.setId(i);
user.setMame("闫文超" + i);
user.setAge(getRanddomAge());
list.add(user);
}
return list;
}
private static Integer getRanddomAge() {
Random random = new Random();
return random.nextInt(20);
}
}
continue 就是在条件内循环;循环完出去继续循环其他的;
程序循环控制结构中,表示结束本次循环,若后续还有循环,则继续进行后面的循环