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Test.java
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Test.java
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package com.winitech.rmw;
import lombok.Data;
import org.assertj.core.api.Assertions;
import org.springframework.boot.test.context.SpringBootTest;
import java.util.ArrayList;
import java.util.List;
@SpringBootTest
public class Test {
@org.junit.jupiter.api.Test
public void test(){
List<Person> personList = new ArrayList<>();
List<Person> personList2 = new ArrayList<>();
personList.add(new Person("kim", "20", "대구"));
personList.add(new Person("kim", "19", "대구"));
personList.add(new Person("kim", "18", "대구"));
personList.add(new Person("park", "19", "대구"));
personList2.add(new Person("kim", "19", "대구"));
System.out.println("personList 1 >>" + System.identityHashCode(personList.get(1)));
System.out.println("personList2 0 >>" + System.identityHashCode(personList2.get(0)));
// Assertions.assertThat(personList.get(1)).isEqualTo(personList2.get(0));
System.out.println("PersonList");
personList.stream()
.forEach(System.out::println);
System.out.println();
System.out.println("PersonList2");
personList2.stream()
.forEach(System.out::println);
System.out.println();
for (int i = 0; i < personList2.size(); i++) {
personList.remove(personList2.get(i));
}
System.out.println("Result");
personList.stream()
.forEach(System.out::println);
List<Person> personList3 = new ArrayList<>();
List<Person> personList4 = new ArrayList<>();
Person person1 = new Person("kim", "20", "대구");
Person person5 = new Person("kim", "19", "대구");
Person person3 = new Person("kim", "18", "대구");
Person person4 = new Person("park", "19", "대구");
Person person2 = new Person("kim", "19", "대구");
personList3.add(person1);
personList3.add(person3);
personList3.add(person4);
personList3.add(person5);
personList4.add(person2);
Assertions.assertThat(personList3.get(3)).isEqualTo(personList4.get(0));
// List<Person> truePersonList = personList.stream()
// .filter(filter -> personList2.stream()
// .noneMatch(target -> filter.getAge().equals(target.getAge())
// && filter.getName().equals(target.getName())
// && filter.getSido().equals(target.getSido())))
// .collect(Collectors.toList());
System.out.println("PersonList3");
personList3.stream()
.forEach(System.out::println);
System.out.println();
System.out.println("PersonList4");
personList4.stream()
.forEach(System.out::println);
System.out.println();
for (int i = 0; i < personList4.size(); i++) {
personList3.remove(personList4.get(i));
}
System.out.println("Result");
personList3.stream()
.forEach(System.out::println);
}
}
@Data
class Person {
private String name;
private String age;
private String sido;
Person(){}
Person(String name, String age, String sido) {
this.name = name;
this.age = age;
this.sido = sido;
}
@Override
public String toString() {
return "Person{" +
"name='" + name + '\'' +
", age='" + age + '\'' +
", sido='" + sido + '\'' +
'}';
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public String getSido() {
return sido;
}
public void setSido(String sido) {
this.sido = sido;
}
}