java虚拟机开始学习

chenzhuo@picooc.com · chenzhuo@picooc.com · commit 353d6edaf203 · 2018-12-02T21:01:11.000+08:00
diff --git a/src/main/java/com/basics/JucTest/CallableTest/CallableDemon.java b/src/main/java/com/basics/JucTest/CallableTest/CallableDemon.java
@@ -20,5 +20,4 @@ public Integer call() throws Exception {
         return sum;
     }
 
-
 }
diff --git a/src/main/java/com/basics/JucTest/Final/RunnableTest.java b/src/main/java/com/basics/JucTest/Final/RunnableTest.java
@@ -25,6 +25,7 @@ public static void main(String[] args) {
             });
         }
 
+
         executorService.shutdown();
     }
 }
diff --git a/src/main/java/com/jdk8/lmb/TestOne.java b/src/main/java/com/jdk8/lmb/TestOne.java
@@ -0,0 +1,29 @@
+package com.jdk8.lmb;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+
+/**
+ * @ClassName TestOne
+ * @Despacito TODO
+ * @Author chenzhuo
+ * @Version 1.0
+ **/
+public class TestOne {
+    public static void main(String[] args) {
+        List<Integer> list = new ArrayList<>();
+        list.add(1);
+        list.add(2);
+        list.add(3);
+        list.add(4);
+        Runnable rr;
+
+        list.forEach(new Consumer<Integer>() {
+            @Override
+            public void accept(Integer integer) {
+
+            }
+        });
+    }
+}
diff --git a/src/main/java/com/jdk8/lmb/lam_interface/LamInterfaceTest.java b/src/main/java/com/jdk8/lmb/lam_interface/LamInterfaceTest.java
@@ -0,0 +1,8 @@
+package com.jdk8.lmb.lam_interface;
+/**
+ *  函数式接口
+ */
+@FunctionalInterface
+public interface LamInterfaceTest {
+    String getString();
+}
diff --git a/src/main/java/com/jdk8/lmb/lam_interface/impl/InterFaceTest.java b/src/main/java/com/jdk8/lmb/lam_interface/impl/InterFaceTest.java
@@ -0,0 +1,28 @@
+package com.jdk8.lmb.lam_interface.impl;
+
+
+import com.jdk8.lmb.lam_interface.LamInterfaceTest;
+import com.sun.org.apache.regexp.internal.RE;
+
+import java.util.concurrent.Callable;
+
+/**
+ * @ClassName InterFaceTest
+ * @Despacito TODO
+ * @Author chenzhuo
+ * @Version 1.0
+ **/
+public class InterFaceTest {
+    public static void main(String[] args) {
+
+        Callable callable = ()->{
+            return "" ;
+        };
+        LamInterfaceTest interfaceTest = ()-> {
+            System.out.println("hello : " + System.currentTimeMillis());
+            return "hello Word";
+        };
+        String string = interfaceTest.getString();
+        System.out.println("string:"+string );
+    }
+}
diff --git a/src/main/java/com/jdk8/lmb/lam_interface/impl/InterfaceImpl.java b/src/main/java/com/jdk8/lmb/lam_interface/impl/InterfaceImpl.java
@@ -0,0 +1,35 @@
+package com.jdk8.lmb.lam_interface.impl;
+
+import com.jdk8.lmb.lam_interface.LamInterfaceTest;
+
+/**
+ * @ClassName InterfaceImpl
+ * @Despacito TODO
+ * @Author chenzhuo
+ * @Version 1.0
+ **/
+public class InterfaceImpl implements LamInterfaceTest {
+
+    public String string ;
+
+
+    public void setString(String string) {
+        this.string = string;
+    }
+
+    public InterfaceImpl(){
+
+    }
+
+    public InterfaceImpl(LamInterfaceTest interfaceTest) {
+        interfaceTest.getString();
+    }
+
+    public String getString() {
+        return "hello Word";
+    }
+
+   public String getString(String s) {
+        return s;
+    }
+}
diff --git a/src/main/java/com/jdk8/lmb/lmb.java b/src/main/java/com/jdk8/lmb/lmb.java
@@ -0,0 +1,28 @@
+package com.jdk8.lmb;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.swing.*;
+
+/**
+ * @ClassName lmb
+ * @Despacito TODO
+ * @Author chenzhuo
+ * @Version 1.0
+ **/
+public class lmb {
+    private static Logger logger =
+            LoggerFactory.getLogger(lmb.class);
+    public static void main(String[] args) {
+        JFrame frame = new JFrame("lm");
+        JButton jButton = new JButton("s");
+        jButton.addActionListener(event->
+            System.out.println("e" + event.getModifiers())
+        );
+        frame.add(jButton);
+        frame.pack();
+        frame.setVisible(true);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    }
+}
diff --git a/src/main/java/com/jdk8/lmb/package-info.java b/src/main/java/com/jdk8/lmb/package-info.java
@@ -0,0 +1,11 @@
+/**
+ * 兰八达表达式
+ * 函数式接口:
+ * 1.如果一個接口只有一个抽象方法,那麼他就是一個函数式接口
+ *        Note that instances of functional interfaces can be created with
+ *        lambda expressions, method references, or constructor references.
+ *        函数接口的实例，可以使用lambda表达式和方法引用 或者构造方式引用来创建函数式接口的实例
+ * 2.如果在接口上声明了FunctionalInterface注解，那么编译器就会按函数式接口的定义来要求接口
+ * 3.如果一个接口有且只有一个抽象方,但是我们并没有声明FunctionalInterface注解,jvm也会默认认为他是一个函数
+ */
+package com.jdk8.lmb;
diff --git a/src/main/java/com/jdk8/package-info.java b/src/main/java/com/jdk8/package-info.java
@@ -0,0 +1,5 @@
+/**
+ * jdk8的特性
+ * 学习已经及兼容
+ */
+package com.jdk8;
diff --git a/src/main/java/com/sun/jvm/ClassLocader/VmClassLoader.java b/src/main/java/com/sun/jvm/ClassLocader/VmClassLoader.java
@@ -2,6 +2,8 @@
 
 import com.basics.ClassLoaderTest.ClassLoaderLoadClass;
 
+import java.util.concurrent.FutureTask;
+
 /**
  * @ClassName VmClassLoader
  * @Despacito TODO 学习jvm
@@ -28,6 +30,8 @@ public class VmClassLoader {
     public static void main(String[] args) {
       /*  ClassLoader classLoader = ClassLoader.getSystemClassLoader();
         classLoader.loadClass();*/
+        Class clazz ;
+
         Singer singer = Singer.getInstance();
         System.out.println("count1:" + singer.count1);
         System.out.println("count2:" + singer.count2);

Original file line number	Diff line number	Diff line change
`@@ -20,5 +20,4 @@ public Integer call() throws Exception {`
`20`	`20`	`return sum;`
`21`	`21`	`}`
`22`	`22`
`23`		`-`
`24`	`23`	`}`
Original file line number	Diff line number	Diff line change
`@@ -25,6 +25,7 @@ public static void main(String[] args) {`
`25`	`25`	`});`
`26`	`26`	`}`
`27`	`27`
	`28`	`+`
`28`	`29`	`executorService.shutdown();`
`29`	`30`	`}`
`30`	`31`	`}`