From 729101d05569b8bb4519463e0c5c5b935f890ca2 Mon Sep 17 00:00:00 2001
From: 30980 <309804010@qq.com>
Date: Mon, 29 Aug 2022 22:43:47 +0800
Subject: [PATCH] =?UTF-8?q?=E6=AF=94=E8=BE=83=E5=99=A8=20Comparator?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 pom.xml                                       |  16 +++++
 .../java/com/never/basic/ComparatorDemo.java  |  59 ++++++++++++++++++
 src/main/java/com/never/basic/Student.java    |  22 +++++++
 .../com/never/basic/BitOperation.class        | Bin 925 -> 922 bytes
 .../classes/com/never/basic/BubbleSort.class  | Bin 615 -> 615 bytes
 .../classes/com/never/basic/CommonUtil.class  | Bin 451 -> 451 bytes
 .../classes/com/never/basic/NRecursion.class  | Bin 780 -> 780 bytes
 .../classes/com/never/basic/SelectSort.class  | Bin 651 -> 651 bytes
 target/classes/com/never/basic/SortDemo.class | Bin 1093 -> 1093 bytes
 9 files changed, 97 insertions(+)
 create mode 100644 src/main/java/com/never/basic/ComparatorDemo.java
 create mode 100644 src/main/java/com/never/basic/Student.java

diff --git a/pom.xml b/pom.xml
index d4cd5a3..a18d298 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,6 +26,12 @@
       <version>4.11</version>
       <scope>test</scope>
     </dependency>
+      <dependency>
+          <groupId>org.projectlombok</groupId>
+          <artifactId>lombok</artifactId>
+          <version>RELEASE</version>
+          <scope>compile</scope>
+      </dependency>
   </dependencies>
 
   <build>
@@ -63,5 +69,15 @@
         </plugin>
       </plugins>
     </pluginManagement>
+      <plugins>
+          <plugin>
+              <groupId>org.apache.maven.plugins</groupId>
+              <artifactId>maven-compiler-plugin</artifactId>
+              <configuration>
+                  <source>8</source>
+                  <target>8</target>
+              </configuration>
+          </plugin>
+      </plugins>
   </build>
 </project>
diff --git a/src/main/java/com/never/basic/ComparatorDemo.java b/src/main/java/com/never/basic/ComparatorDemo.java
new file mode 100644
index 0000000..f0267f0
--- /dev/null
+++ b/src/main/java/com/never/basic/ComparatorDemo.java
@@ -0,0 +1,59 @@
+package com.never.basic;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
+
+public class ComparatorDemo {
+    public static void main(String[] args) {
+        Student s1 = new Student(4, 17, "张三");
+        Student s2 = new Student(1, 17, "张三");
+        Student s3 = new Student(3, 17, "张三");
+        Student s4 = new Student(8, 17, "张三");
+        Student s5 = new Student(6, 17, "张三");
+        System.out.println("--------Array------------");
+        Student[] arr = {s1,s2,s3,s4,s5};
+        for(int i = 0 ;i <arr.length; i++){
+            System.out.println(arr[i]);
+        }
+        System.out.println("--------------------");
+        Arrays.sort(arr,new IdComparator());
+        for(int i = 0 ;i <arr.length; i++){
+            System.out.println(arr[i]);
+        }
+
+        System.out.println("------ArrayList-------------");
+        ArrayList<Student> list = new ArrayList<>();
+        list.add(s1);
+        list.add(s2);
+        list.add(s3);
+        list.add(s4);
+        list.add(s5);
+        for(Student s: list){
+            System.out.println(s);
+        }
+        System.out.println("--------------------");
+        list.sort(new IdComparator());
+        for(Student s: list){
+            System.out.println(s);
+        }
+    }
+}
+class IdComparator implements Comparator<Student>{
+
+
+    @Override
+    public int compare(Student o1, Student o2) {
+        int res = 0;
+
+        if(o1.getId()<o2.getId()){
+            res = -1;
+        }else if (o1.getId()>o2.getId()){
+            res = 1;
+        }
+        else  if (o1.getId() == o2.getId()){
+            res = 0;
+        }
+        return res;
+    }
+}
diff --git a/src/main/java/com/never/basic/Student.java b/src/main/java/com/never/basic/Student.java
new file mode 100644
index 0000000..c3e7212
--- /dev/null
+++ b/src/main/java/com/never/basic/Student.java
@@ -0,0 +1,22 @@
+package com.never.basic;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class Student {
+    private Integer id;
+    private Integer age;
+    private String name;
+
+    @Override
+    public String toString() {
+        return "Student{" +
+                "id=" + id +
+                ", age=" + age +
+                ", name='" + name + '\'' +
+                '}';
+    }
+}
diff --git a/target/classes/com/never/basic/BitOperation.class b/target/classes/com/never/basic/BitOperation.class
index aa9918e6c53d7c799a513f0428b0c22cfe9b54e5..9e7568320849c187d8dc919f2f14cf155dcef6cf 100644
GIT binary patch
delta 546
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zE_8N^(4BPIE`qr52lzYu6(XkRO&9mQd+xpGocrFDx=<hPpKtE~ETUyW!cZ`6q>vVH
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Q6b$C#ksAs$IU%v|55B5Wwg3PC

delta 537
zcmXYtJ#Q015Qd-Gz4M-r3mh>va6SX(Be4^LV?c^PAq5cy1)@Mo9S0%gD6*o+il{(B
z;Ri(5MWUdJkZ7QA5CtU#zk^?a5N6h<*qQg8-JNH4kKB9r;OF0O-+?>aj)`c-IIfnt
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diff --git a/target/classes/com/never/basic/BubbleSort.class b/target/classes/com/never/basic/BubbleSort.class
index 525466faecac198610521524314a31813a6ac0e9..b5371282ae6d82e7f8f27869e7defd3864ec5e79 100644
GIT binary patch
delta 268
zcmXYqJ5B;|5XOJA4_5y!x(Mw0gjk7CY@wZEX=`FZNwOMaAcl%~0xm$d^Z;8~*jji1
zYOg>@Jc1#vvl}Oq$$axYX63A$o5k<PCvZW_U}1YWJ}wm@7$+}D{G3dl;@kW2<HJ;_
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a2O4*%`Z}IrjmR1!(GRY+Qb$Tz9RC4b-6szK

delta 266
zcmXYqyGjF55Qe|mOU`=S)x^Y2yd_v^wAdo0m(o_SuoPAiNsv^*$}%soq!J$>rPx~d
z0M@>O1bhSuu5*IJF#MO9e`dif=zjdZy#qbkmVngKq-EGJYzmd*{;)qf75x3~W%2Zq
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aHP$q)u4)})nIkgCO7n+MTdjs#9_xQUiYF2P

diff --git a/target/classes/com/never/basic/CommonUtil.class b/target/classes/com/never/basic/CommonUtil.class
index d4e83c4427c1e1af62803a4131d36be7793b94b3..15993b3423b803b30d83887f487d5cf76a5acbf2 100644
GIT binary patch
delta 269
zcmYL?y>7xl5QM+;84Tvf{DdSDL{XZET!9-(L`Ur|y+Kg~il`7R&%itI0#uPw(9osH
z8zJUQky~kIcV}nrY|nP`d-*v5V;*AyY(!Y6MA^_<<=Z^{%GaN1HeY=#Hiq(Kxn6Fj
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Gc(?+0avAFY

delta 268
zcmX9%y9&ZU5S+U+4`X~k!H5VJdW9)$gTIhYu#6&-AXZ}QH{>Vmtpp1jJ3mUCoVT#E
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diff --git a/target/classes/com/never/basic/NRecursion.class b/target/classes/com/never/basic/NRecursion.class
index 87e14bddb9e681a1bbfbbe9f89fe8016322f6216..ec9fb4ee2e0ed941da92abb8255d6625cd4dc7dc 100644
GIT binary patch
delta 379
zcmXAly-or_6otQ8mR%SYM9@`0MMdSWAVy1KjD-m{CKmQch=G{Z2-^ArG-PXId;~3w
zvG4(W2rHk$f_P`mB$IRRocqn0nK%>Y_-pp@3GCC<Sj1dxk2sDZJM7+fTUXuSvUPef
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vRXH&O4Qxr1XG?4bS7KX~xuU>MG-}J!s-i4v(obQ{<U5u6B`4f^WNrKbYM?7J

delta 380
zcmXAky-or_6ot>s?#{Zyf~>13prYarKLsJS#7+}zOnd_*#6ZlN2-;d`Nwe7pAU=W?
z##s0OK7p03?_fbZv(8Os&ON#JyLYB)s@k9P_YVMvXlf{IXgJvPP{EeQHg;T8UF-^|
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wp_7@co|=XRY;F^>F-&n~tWuc~MXaT*Hk~4sM2UU|at<Yg_$67OoR+Tt0h-(^!vFvP

diff --git a/target/classes/com/never/basic/SelectSort.class b/target/classes/com/never/basic/SelectSort.class
index b14b34065acb2d7951cf683695a88ea737dad1b1..facf0ba1d458aabb7512553b6684def7087563ed 100644
GIT binary patch
delta 268
zcmXYrzfJ;S5X67`9mnB$!ioP;Ks(Xm3P~(9cA8jOnAo4j5Qw27K7kz-xp&aoN@L*z
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delta 266
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diff --git a/target/classes/com/never/basic/SortDemo.class b/target/classes/com/never/basic/SortDemo.class
index e0fc4a1ca24771c4177d4ccc493399198605266e..4e4d68a2351df72140f3934abc2c9d51c919d094 100644
GIT binary patch
delta 628
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delta 591
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