Update

.idea/inspectionProfiles/Project_Default.xml

@@ -60,9 +60,6 @@
     <inspection_tool class="ClassOnlyUsedInOnePackage" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="ClassUnconnectedToPackage" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="ClassWithoutConstructor" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="ClassWithoutNoArgConstructor" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="m_ignoreClassesWithNoConstructors" value="true" />
-    </inspection_tool>
     <inspection_tool class="CloneableClassInSecureContext" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="ComparableImplementedButEqualsNotOverridden" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="CompareToUsesNonFinalVariable" enabled="true" level="WARNING" enabled_by_default="true" />
@@ -108,6 +105,7 @@
     </inspection_tool>
     <inspection_tool class="InconsistentLanguageLevel" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="IncrementDecrementUsedAsExpression" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="InfiniteLoopStatement" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="InnerClassReferencedViaSubclass" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="InstanceGuardedByStatic" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="InstanceofIncompatibleInterface" enabled="true" level="WARNING" enabled_by_default="true" />
@@ -156,7 +154,6 @@
     <inspection_tool class="NonFinalFieldInImmutable" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="NonFinalGuard" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="NonShortCircuitBoolean" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="NonStaticInnerClassInSecureContext" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="OverlyLargePrimitiveArrayInitializer" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="m_limit" value="64" />
     </inspection_tool>
@@ -181,7 +178,15 @@
       <option name="ignoreLazyOperators" value="true" />
       <option name="ignoreObscureOperators" value="false" />
     </inspection_tool>
-    <inspection_tool class="ResultOfObjectAllocationIgnored" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="ResultOfObjectAllocationIgnored" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="ignoredClasses">
+        <set>
+          <option value="多线程.InterruptedSwing" />
+          <option value="多线程.JoinTest" />
+          <option value="多线程.SwingAndThread" />
+        </set>
+      </option>
+    </inspection_tool>
     <inspection_tool class="ResultSetIndexZero" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="ReturnNull" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="m_reportObjectMethods" value="true" />
@@ -220,7 +225,6 @@
       <option name="m_limit" value="3" />
     </inspection_tool>
     <inspection_tool class="UnknownGuard" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="UnsecureRandomNumberGeneration" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="UseOfAWTPeerClass" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="UseOfJDBCDriverClass" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="UseOfProcessBuilder" enabled="true" level="WARNING" enabled_by_default="true" />

.idea/markdown-navigator.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="MarkdownProjectSettings" wasCopied="false">
+    <PreviewSettings splitEditorLayout="SPLIT" splitEditorPreview="PREVIEW" useGrayscaleRendering="false" zoomFactor="1.0" maxImageWidth="0" showGitHubPageIfSynced="false" allowBrowsingInPreview="false" synchronizePreviewPosition="true" highlightPreviewType="NONE" highlightFadeOut="5" highlightOnTyping="true" synchronizeSourcePosition="true" verticallyAlignSourceAndPreviewSyncPosition="true" showSearchHighlightsInPreview="false" showSelectionInPreview="true" openRemoteLinks="true" replaceUnicodeEmoji="false" lastLayoutSetsDefault="false">
+      <PanelProvider>
+        <provider providerId="com.vladsch.idea.multimarkdown.editor.swing.html.panel" providerName="Default - Swing" />
+      </PanelProvider>
+    </PreviewSettings>
+    <ParserSettings gitHubSyntaxChange="false" emojiShortcuts="1" emojiImages="0">
+      <PegdownExtensions>
+        <option name="ABBREVIATIONS" value="false" />
+        <option name="ANCHORLINKS" value="true" />
+        <option name="ASIDE" value="false" />
+        <option name="ATXHEADERSPACE" value="true" />
+        <option name="AUTOLINKS" value="false" />
+        <option name="DEFINITIONS" value="false" />
+        <option name="DEFINITION_BREAK_DOUBLE_BLANK_LINE" value="false" />
+        <option name="FENCED_CODE_BLOCKS" value="true" />
+        <option name="FOOTNOTES" value="false" />
+        <option name="HARDWRAPS" value="false" />
+        <option name="HTML_DEEP_PARSER" value="false" />
+        <option name="INSERTED" value="false" />
+        <option name="QUOTES" value="false" />
+        <option name="RELAXEDHRULES" value="true" />
+        <option name="SMARTS" value="false" />
+        <option name="STRIKETHROUGH" value="true" />
+        <option name="SUBSCRIPT" value="false" />
+        <option name="SUPERSCRIPT" value="false" />
+        <option name="SUPPRESS_HTML_BLOCKS" value="false" />
+        <option name="SUPPRESS_INLINE_HTML" value="false" />
+        <option name="TABLES" value="true" />
+        <option name="TASKLISTITEMS" value="true" />
+        <option name="TOC" value="false" />
+        <option name="WIKILINKS" value="false" />
+      </PegdownExtensions>
+      <ParserOptions>
+        <option name="ADMONITION_EXT" value="false" />
+        <option name="ATTRIBUTES_EXT" value="false" />
+        <option name="COMMONMARK_LISTS" value="true" />
+        <option name="DUMMY" value="false" />
+        <option name="EMOJI_SHORTCUTS" value="true" />
+        <option name="ENUMERATED_REFERENCES_EXT" value="false" />
+        <option name="FLEXMARK_FRONT_MATTER" value="false" />
+        <option name="GFM_LOOSE_BLANK_LINE_AFTER_ITEM_PARA" value="false" />
+        <option name="GFM_TABLE_RENDERING" value="true" />
+        <option name="GITBOOK_URL_ENCODING" value="false" />
+        <option name="GITHUB_LISTS" value="false" />
+        <option name="GITHUB_WIKI_LINKS" value="false" />
+        <option name="GITLAB_EXT" value="false" />
+        <option name="GITLAB_MATH_EXT" value="false" />
+        <option name="GITLAB_MERMAID_EXT" value="false" />
+        <option name="HEADER_ID_NON_ASCII_TO_LOWERCASE" value="false" />
+        <option name="HEADER_ID_NO_DUPED_DASHES" value="false" />
+        <option name="JEKYLL_FRONT_MATTER" value="false" />
+        <option name="MACROS_EXT" value="false" />
+        <option name="NO_TEXT_ATTRIBUTES" value="false" />
+        <option name="PARSE_HTML_ANCHOR_ID" value="false" />
+        <option name="PLANTUML_FENCED_CODE" value="false" />
+        <option name="PUML_FENCED_CODE" value="false" />
+        <option name="SIM_TOC_BLANK_LINE_SPACER" value="true" />
+      </ParserOptions>
+    </ParserSettings>
+    <HtmlSettings headerTopEnabled="false" headerBottomEnabled="false" bodyTopEnabled="false" bodyBottomEnabled="false" embedUrlContent="false" addPageHeader="true" embedImages="false" embedHttpImages="false" imageUriSerials="false" addDocTypeHtml="true" noParaTags="false" plantUmlConversion="0" mathConversion="0">
+      <GeneratorProvider>
+        <provider providerId="com.vladsch.idea.multimarkdown.editor.swing.html.generator" providerName="Default Swing HTML Generator" />
+      </GeneratorProvider>
+      <headerTop />
+      <headerBottom />
+      <bodyTop />
+      <bodyBottom />
+    </HtmlSettings>
+    <CssSettings previewScheme="UI_SCHEME" cssUri="" isCssUriEnabled="false" isCssUriSerial="true" isCssTextEnabled="false" isDynamicPageWidth="true">
+      <StylesheetProvider>
+        <provider providerId="com.vladsch.idea.multimarkdown.editor.swing.html.css" providerName="Default Swing Stylesheet" />
+      </StylesheetProvider>
+      <ScriptProviders />
+      <cssText />
+      <cssUriHistory />
+    </CssSettings>
+    <AnnotatorSettings targetHasSpaces="true" linkCaseMismatch="true" wikiCaseMismatch="true" wikiLinkHasDashes="true" notUnderWikiHome="true" targetNotWikiPageExt="true" notUnderSourceWikiHome="true" targetNameHasAnchor="true" targetPathHasAnchor="true" wikiLinkHasSlash="true" wikiLinkHasSubdir="true" wikiLinkHasOnlyAnchor="true" linkTargetsWikiHasExt="true" linkTargetsWikiHasBadExt="true" notUnderSameRepo="true" targetNotUnderVcs="false" linkNeedsExt="true" linkHasBadExt="true" linkTargetNeedsExt="true" linkTargetHasBadExt="true" wikiLinkNotInWiki="true" imageTargetNotInRaw="true" repoRelativeAcrossVcsRoots="true" multipleWikiTargetsMatch="true" unresolvedLinkReference="true" linkIsIgnored="true" anchorIsIgnored="true" anchorIsUnresolved="true" anchorLineReferenceIsUnresolved="true" anchorLineReferenceFormat="true" anchorHasDuplicates="true" abbreviationDuplicates="true" abbreviationNotUsed="true" attributeIdDuplicateDefinition="true" attributeIdNotUsed="true" footnoteDuplicateDefinition="true" footnoteUnresolved="true" footnoteDuplicates="true" footnoteNotUsed="true" macroDuplicateDefinition="true" macroUnresolved="true" macroDuplicates="true" macroNotUsed="true" referenceDuplicateDefinition="true" referenceUnresolved="true" referenceDuplicates="true" referenceNotUsed="true" referenceUnresolvedNumericId="true" enumRefDuplicateDefinition="true" enumRefUnresolved="true" enumRefDuplicates="true" enumRefNotUsed="true" enumRefLinkUnresolved="true" enumRefLinkDuplicates="true" simTocUpdateNeeded="true" simTocTitleSpaceNeeded="true" />
+    <HtmlExportSettings updateOnSave="false" parentDir="" targetDir="" cssDir="css" scriptDir="js" plainHtml="false" imageDir="" copyLinkedImages="false" imageUniquifyType="0" targetPathType="2" targetExt="" useTargetExt="false" noCssNoScripts="false" useElementStyleAttribute="false" linkToExportedHtml="true" exportOnSettingsChange="true" regenerateOnProjectOpen="false" linkFormatType="HTTP_ABSOLUTE" />
+    <LinkMapSettings>
+      <textMaps />
+    </LinkMapSettings>
+  </component>
+</project>
\ No newline at end of file

.idea/markdown-navigator/profiles_settings.xml

+<component name="MarkdownNavigator.ProfileManager">
+  <settings default="" pdf-export="" plain-text-search-scope="Project Files" />
+</component>
\ No newline at end of file

src/多线程/InterruptedSwing.java

+package 多线程;
+
+// !/usr/bin/env jdk1.8
+// encoding:utf-8
+//@software:IntelliJ IDEA
+//@pack:多线程
+//@user:彭友聪
+//@date:2019/07/17
+//@time:下午 4:30
+//@project:IDEA_JAVA
+//@file:InterruptedSwing.java
+//Author:御承扬
+//email:2923616405@qq.com
+
+import javax.swing.*;
+import java.awt.*;
+
+public class InterruptedSwing extends JFrame {
+
+    private InterruptedSwing(){
+        setDefaultCloseOperation( WindowConstants.EXIT_ON_CLOSE );
+        setSize(100,100);
+        setVisible( true );
+        final JProgressBar progressBar = new JProgressBar(  ); // 创建进度条
+        // 将进度条放置到合适的位置
+        getContentPane().add(progressBar, BorderLayout.NORTH );
+        progressBar.setStringPainted( true ); // 设置进度条上显示数字
+        // 执行线程停止方法
+        Thread thread = new Thread() {
+            int count = 0;
+
+            public void run() {
+                while (true) {
+                    ++count;
+                    progressBar.setValue( count );
+                    try {
+                        if (count == 30) {
+                            interrupt(); // 执行线程停止方法
+                        }
+                        Thread.sleep( 100 );
+                    } catch (InterruptedException e) {
+                        System.out.println( "当前线程被中断" );
+                        break;
+                    }
+                }
+            }
+        };
+        thread.start();
+    }
+
+    public static void main(String[] args) {
+        new InterruptedSwing();
+    }
+}

src/多线程/Priority.java

+package 多线程;
+
+// !/usr/bin/env jdk1.8
+// encoding:utf-8
+//@software:IntelliJ IDEA
+//@pack:多线程
+//@user:彭友聪
+//@date:2019/07/17
+//@time:下午 7:56
+//@project:IDEA_JAVA
+//@file:Priority.java
+//Author:御承扬
+//email:2923616405@qq.com
+
+
+public class Priority extends Thread {
+    private String threadName; // 线程的名字
+    private String output;
+
+    // 以线程名、控制台输出的信息为参数的构造方法，利用构造方法初始化变量
+    Priority(String threadName, String output) {
+        this.threadName = threadName;
+        this.output = output;
+    }
+
+    @Override
+    public void run() {  // 线程要执行的任务
+        System.out.print( threadName + ":" + output + " " );
+    }
+}
+

src/多线程/PriorityTest.java

+package 多线程;
+
+public class PriorityTest {
+    public PriorityTest() {
+    }
+
+    public static void main(String[] args) {
+        for(int i=0;i<100;i++) { // 通过循环控制线程的启动次数
+            Priority test1 = new Priority( "加","+" );
+            test1.setPriority( Thread.MIN_PRIORITY ); // 设置优先级最低
+            Priority test2 = new Priority( "减","-" );
+            test2.setPriority( 3 );
+            Priority test3 = new Priority( "乘","×" );
+            test3.setPriority( 8 );
+            Priority test4 = new Priority( "除","÷" );
+            test4.setPriority( Thread.MAX_PRIORITY ); // 设置优先级最高
+            // 启动线程
+            test1.start();
+            test2.start();
+            test3.start();
+            test4.start();
+            System.out.println(  ); // 换行
+        }
+    }
+}

笔记/多线程.md

@@ -412,7 +412,50 @@
     public static void main(String[] args) {
         new InterruptedSwing();
     }
-}
+    }
+    ```
+## 5、线程的优先级
+* 每个线程都有自己的优先级，线程的优先级可以表明在程序中该线程的重要性；当有很多线程处于就绪状态时，系统会根据线程的优先级决定线程的运行次序。
+* Thread 类中定义了一些常量用来表示线程的优先级，Thread.MIN_PRIORITY~Thread.MAX_PRIORITY （常数1~常数10），默认情况下，现成的优先级都是 Thread.NORM_PRIORITY。每个线程的产生都继承了父线程的优先级。
+* **多线程的执行本身就是多个线程交换执行，并非同时执行，通过设置线程的优先级的高低，只是说明该线程或被执行或暂不执行的概率更大一些，并不能保证优先级高的线程就一定会比优先级低的线程先执行。**
+* 实例：
     ```
+     public class Priority extends Thread {
+    private String threadName; // 线程的名字
+    private String output;
+
+    // 以线程名、控制台输出的信息为参数的构造方法，利用构造方法初始化变量
+    Priority(String threadName, String output) {
+        this.threadName = threadName;
+        this.output = output;
+    }
+
+    @Override
+    public void run() {  // 线程要执行的任务
+        System.out.print( threadName + ":" + output + " " );
+    }
+  }
+  public class PriorityTest {
+    public PriorityTest() {
+    }
 
-  
\ No newline at end of file
+    public static void main(String[] args) {
+        for(int i=0;i<100;i++) { // 通过循环控制线程的启动次数
+            Priority test1 = new Priority( "加","+" );
+            test1.setPriority( Thread.MIN_PRIORITY ); // 设置优先级最低
+            Priority test2 = new Priority( "减","-" );
+            test2.setPriority( 3 );
+            Priority test3 = new Priority( "乘","×" );
+            test3.setPriority( 8 );
+            Priority test4 = new Priority( "除","÷" );
+            test4.setPriority( Thread.MAX_PRIORITY ); // 设置优先级最高
+            // 启动线程
+            test1.start();
+            test2.start();
+            test3.start();
+            test4.start();
+            System.out.println(  ); // 换行
+        }
+    }
+  }
+    ```
\ No newline at end of file