设计模式V1.0完结

Author: bjmashibing

.idea/workspace.xml

@@ -0,0 +1,32 @@
+package com.mashibing.dp.TemplateMethod;
+
+public class Main {
+    public static void main(String[] args) {
+        F f = new C1();
+        f.m();
+    }
+
+}
+
+abstract class F {
+    public void m() {
+        op1();
+        op2();
+    }
+
+    abstract void op1();
+    abstract void op2();
+}
+
+class C1 extends F {
+
+    @Override
+    void op1() {
+        System.out.println("op1");
+    }
+
+    @Override
+    void op2() {
+        System.out.println("op2");
+    }
+}

src/main/java/com/mashibing/dp/TemplateMethod/Main.java

@@ -4,16 +4,19 @@
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.awt.event.WindowListener;
+import java.util.concurrent.locks.LockSupport;
 
 public class Test {
-    public static void main(String[] args) {
-        Frame f = new Frame();
-        f.addWindowListener(new WindowAdapter() {
-            @Override
-            public void windowClosing(WindowEvent e) {
-                super.windowClosing(e);
-            }
+    public static void main(String[] args) throws Exception {
+        Thread t = new Thread(()->{
+            System.out.println("start");
+            LockSupport.park(); //一直wait
+            System.out.println("continue");
         });
+        t.start();
+
+        Thread.sleep(1000);
+        LockSupport.unpark(t); //t线程解除wait态
     }
 }
 

src/main/java/com/mashibing/dp/Test.java

@@ -1,5 +1,8 @@
 package com.mashibing.dp.command;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class Main {
     public static void main(String[] args) {
         Content c = new Content();
@@ -16,6 +19,23 @@ public static void main(String[] args) {
         deleteCommand.doit();
         deleteCommand.undo();
 
+        List<Command> commands = new ArrayList<>();
+        commands.add(new InsertCommand(c));
+        commands.add(new CopyCommand(c));
+        commands.add(new DeleteCommand(c));
+
+        for(Command comm : commands) {
+            comm.doit();
+        }
+
+
+        System.out.println(c.msg);
+
+        for(int i= commands.size()-1; i>=0; i--) {
+            commands.get(i).undo();
+        }
+
+
         System.out.println(c.msg);
     }
 }

src/main/java/com/mashibing/dp/command/Main.java

@@ -0,0 +1 @@
+脚本语言解释器

src/main/java/com/mashibing/dp/intepreter/readme

@@ -0,0 +1,2 @@
+记录对象的某个瞬间
+类似照片

src/main/java/com/mashibing/dp/memento/readme

@@ -0,0 +1,48 @@
+package com.mashibing.dp.prototype.v1;
+
+/**
+ * 浅克隆
+ */
+
+public class Test {
+    public static void main(String[] args) throws Exception {
+        Person p1 = new Person();
+        Person p2 = (Person)p1.clone();
+        System.out.println(p2.age + " " + p2.score);
+        System.out.println(p2.loc);
+
+        System.out.println(p1.loc == p2.loc);
+        p1.loc.street = "sh";
+        System.out.println(p2.loc);
+
+    }
+}
+
+class Person implements Cloneable {
+    int age = 8;
+    int score = 100;
+
+    Location loc = new Location("bj", 22);
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+}
+
+class Location {
+    String street;
+    int roomNo;
+
+    @Override
+    public String toString() {
+        return "Location{" +
+                "street='" + street + '\'' +
+                ", roomNo=" + roomNo +
+                '}';
+    }
+
+    public Location(String street, int roomNo) {
+        this.street = street;
+        this.roomNo = roomNo;
+    }
+}

src/main/java/com/mashibing/dp/prototype/v1/Test.java

@@ -0,0 +1,56 @@
+package com.mashibing.dp.prototype.v2;
+
+/**
+ * 深克隆的处理
+ */
+public class Test {
+    public static void main(String[] args) throws Exception {
+        Person p1 = new Person();
+        Person p2 = (Person)p1.clone();
+        System.out.println(p2.age + " " + p2.score);
+        System.out.println(p2.loc);
+
+        System.out.println(p1.loc == p2.loc);
+        p1.loc.street = "sh";
+        System.out.println(p2.loc);
+
+
+
+    }
+}
+
+class Person implements Cloneable {
+    int age = 8;
+    int score = 100;
+
+    Location loc = new Location("bj", 22);
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        Person p = (Person)super.clone();
+        p.loc = (Location)loc.clone();
+        return p;
+    }
+}
+
+class Location implements Cloneable {
+    String street;
+    int roomNo;
+
+    @Override
+    public String toString() {
+        return "Location{" +
+                "street='" + street + '\'' +
+                ", roomNo=" + roomNo +
+                '}';
+    }
+
+    public Location(String street, int roomNo) {
+        this.street = street;
+        this.roomNo = roomNo;
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+}

src/main/java/com/mashibing/dp/prototype/v2/Test.java

@@ -0,0 +1,56 @@
+package com.mashibing.dp.prototype.v3;
+
+/**
+ * String需要进一步深克隆吗？
+ */
+public class Test {
+    public static void main(String[] args) throws Exception {
+        Person p1 = new Person();
+        Person p2 = (Person)p1.clone();
+        System.out.println(p2.age + " " + p2.score);
+        System.out.println(p2.loc);
+
+        System.out.println(p1.loc == p2.loc);
+        p1.loc.street = "sh";
+        System.out.println(p2.loc);
+
+        p1.loc.street.replace("sh", "sz");
+        System.out.println(p2.loc.street);
+    }
+}
+
+class Person implements Cloneable {
+    int age = 8;
+    int score = 100;
+
+    Location loc = new Location("bj", 22);
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        Person p = (Person)super.clone();
+        p.loc = (Location)loc.clone();
+        return p;
+    }
+}
+
+class Location implements Cloneable {
+    String street;
+    int roomNo;
+
+    @Override
+    public String toString() {
+        return "Location{" +
+                "street='" + street + '\'' +
+                ", roomNo=" + roomNo +
+                '}';
+    }
+
+    public Location(String street, int roomNo) {
+        this.street = street;
+        this.roomNo = roomNo;
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+}

src/main/java/com/mashibing/dp/prototype/v3/Test.java

@@ -0,0 +1,51 @@
+package com.mashibing.dp.prototype.v4;
+
+/**
+ * String需要进一步深克隆吗？
+ */
+public class Test {
+    public static void main(String[] args) throws Exception {
+        Person p1 = new Person();
+        Person p2 = (Person)p1.clone();
+        System.out.println("p1.loc == p2.loc? " + (p1.loc == p2.loc));
+
+        p1.loc.street.reverse();
+        System.out.println(p2.loc.street);
+    }
+}
+
+class Person implements Cloneable {
+    int age = 8;
+    int score = 100;
+
+    Location loc = new Location(new StringBuilder("bj"), 22);
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        Person p = (Person)super.clone();
+        p.loc = (Location)loc.clone();
+        return p;
+    }
+}
+
+class Location implements Cloneable {
+    StringBuilder street;
+    int roomNo;
+
+    @Override
+    public String toString() {
+        return "Location{" +
+                "street='" + street + '\'' +
+                ", roomNo=" + roomNo +
+                '}';
+    }
+
+    public Location(StringBuilder street, int roomNo) {
+        this.street = street;
+        this.roomNo = roomNo;
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+}