0001 : Initial Setup

KnowGroup · KnowGroup · commit 02730175199c · 2018-12-11T16:21:46.000+05:30
Lesson 00 Lambda
Lesson 01 Functional Interface
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1 @@
+/build/
diff --git a/nbproject/build-impl.xml b/nbproject/build-impl.xml
@@ -54,7 +54,43 @@ is divided into following sections:
         <property file="nbproject/project.properties"/>
     </target>
     <target depends="-pre-init,-init-private,-init-user,-init-project,-init-macrodef-property" name="-do-init">
-        <property name="platform.java" value="${java.home}/bin/java"/>
+        <j2seproject1:property name="platform.home" value="platforms.${platform.active}.home"/>
+        <j2seproject1:property name="platform.bootcp" value="platforms.${platform.active}.bootclasspath"/>
+        <j2seproject1:property name="platform.compiler" value="platforms.${platform.active}.compile"/>
+        <j2seproject1:property name="platform.javac.tmp" value="platforms.${platform.active}.javac"/>
+        <condition property="platform.javac" value="${platform.home}/bin/javac">
+            <equals arg1="${platform.javac.tmp}" arg2="$${platforms.${platform.active}.javac}"/>
+        </condition>
+        <property name="platform.javac" value="${platform.javac.tmp}"/>
+        <j2seproject1:property name="platform.java.tmp" value="platforms.${platform.active}.java"/>
+        <condition property="platform.java" value="${platform.home}/bin/java">
+            <equals arg1="${platform.java.tmp}" arg2="$${platforms.${platform.active}.java}"/>
+        </condition>
+        <property name="platform.java" value="${platform.java.tmp}"/>
+        <j2seproject1:property name="platform.javadoc.tmp" value="platforms.${platform.active}.javadoc"/>
+        <condition property="platform.javadoc" value="${platform.home}/bin/javadoc">
+            <equals arg1="${platform.javadoc.tmp}" arg2="$${platforms.${platform.active}.javadoc}"/>
+        </condition>
+        <property name="platform.javadoc" value="${platform.javadoc.tmp}"/>
+        <condition property="platform.invalid" value="true">
+            <or>
+                <contains string="${platform.javac}" substring="$${platforms."/>
+                <contains string="${platform.java}" substring="$${platforms."/>
+                <contains string="${platform.javadoc}" substring="$${platforms."/>
+            </or>
+        </condition>
+        <fail unless="platform.home">Must set platform.home</fail>
+        <fail unless="platform.bootcp">Must set platform.bootcp</fail>
+        <fail unless="platform.java">Must set platform.java</fail>
+        <fail unless="platform.javac">Must set platform.javac</fail>
+        <fail if="platform.invalid">
+ The J2SE Platform is not correctly set up.
+ Your active platform is: ${platform.active}, but the corresponding property "platforms.${platform.active}.home" is not found in the project's properties files. 
+ Either open the project in the IDE and setup the Platform with the same name or add it manually.
+ For example like this:
+     ant -Duser.properties.file=&lt;path_to_property_file&gt; jar (where you put the property "platforms.${platform.active}.home" in a .properties file)
+  or ant -Dplatforms.${platform.active}.home=&lt;path_to_JDK_home&gt; jar (where no properties file is used) 
+  </fail>
         <available file="${manifest.file}" property="manifest.available"/>
         <condition property="splashscreen.available">
             <and>
@@ -183,20 +219,6 @@ is divided into following sections:
         <condition else="" property="javac.profile.cmd.line.arg" value="-profile ${javac.profile}">
             <isset property="profile.available"/>
         </condition>
-        <condition else="false" property="jdkBug6558476">
-            <and>
-                <matches pattern="1\.[56]" string="${java.specification.version}"/>
-                <not>
-                    <os family="unix"/>
-                </not>
-            </and>
-        </condition>
-        <condition else="false" property="javac.fork">
-            <or>
-                <istrue value="${jdkBug6558476}"/>
-                <istrue value="${javac.external.vm}"/>
-            </or>
-        </condition>
         <property name="jar.index" value="false"/>
         <property name="jar.index.metainf" value="${jar.index}"/>
         <property name="copylibs.rebase" value="true"/>
@@ -266,7 +288,7 @@ is divided into following sections:
                 <property location="${build.dir}/empty" name="empty.dir"/>
                 <mkdir dir="${empty.dir}"/>
                 <mkdir dir="@{apgeneratedsrcdir}"/>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -306,7 +328,7 @@ is divided into following sections:
             <sequential>
                 <property location="${build.dir}/empty" name="empty.dir"/>
                 <mkdir dir="${empty.dir}"/>
-                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
+                <javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" sourcepath="@{sourcepath}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">
                     <src>
                         <dirset dir="@{gensrcdir}" erroronmissingdir="false">
                             <include name="*"/>
@@ -387,7 +409,7 @@ is divided into following sections:
             <element name="customize" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <test methods="@{testmethods}" name="@{testincludes}" todir="${build.test.results.dir}"/>
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
@@ -410,7 +432,7 @@ is divided into following sections:
             <element name="customize" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <batchtest todir="${build.test.results.dir}">
                         <fileset dir="${test.src.dir}" excludes="@{excludes},${excludes}" includes="@{includes}">
                             <filename name="@{testincludes}"/>
@@ -449,7 +471,7 @@ is divided into following sections:
                     </fileset>
                 </union>
                 <taskdef classname="org.testng.TestNGAntTask" classpath="${run.test.classpath}" name="testng"/>
-                <testng classfilesetref="test.set" failureProperty="tests.failed" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="Java8Features" testname="TestNG tests" workingDir="${work.dir}">
+                <testng classfilesetref="test.set" failureProperty="tests.failed" jvm="${platform.java}" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="Java8Features" testname="TestNG tests" workingDir="${work.dir}">
                     <xmlfileset dir="${build.test.classes.dir}" includes="@{testincludes}"/>
                     <propertyset>
                         <propertyref prefix="test-sys-prop."/>
@@ -529,7 +551,7 @@ is divided into following sections:
             <element name="customize" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <test methods="@{testmethods}" name="@{testincludes}" todir="${build.test.results.dir}"/>
                     <syspropertyset>
                         <propertyref prefix="test-sys-prop."/>
@@ -554,7 +576,7 @@ is divided into following sections:
             <element name="customize" optional="true"/>
             <sequential>
                 <property name="junit.forkmode" value="perTest"/>
-                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" showoutput="true" tempdir="${build.dir}">
+                <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" forkmode="${junit.forkmode}" jvm="${platform.java}" showoutput="true" tempdir="${build.dir}">
                     <batchtest todir="${build.test.results.dir}">
                         <fileset dir="${test.src.dir}" excludes="@{excludes},${excludes}" includes="@{includes}">
                             <filename name="@{testincludes}"/>
@@ -734,6 +756,9 @@ is divided into following sections:
                     <classpath>
                         <path path="@{classpath}"/>
                     </classpath>
+                    <bootclasspath>
+                        <path path="${platform.bootcp}"/>
+                    </bootclasspath>
                 </nbjpdastart>
             </sequential>
         </macrodef>
@@ -749,7 +774,9 @@ is divided into following sections:
         </macrodef>
     </target>
     <target name="-init-debug-args">
-        <property name="version-output" value="java version &quot;${ant.java.version}"/>
+        <exec executable="${platform.java}" outputproperty="version-output">
+            <arg value="-version"/>
+        </exec>
         <condition property="have-jdk-older-than-1.4">
             <or>
                 <contains string="${version-output}" substring="java version &quot;1.0"/>
@@ -774,7 +801,7 @@ is divided into following sections:
             <attribute default="${debug.classpath}" name="classpath"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}">
                     <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                     <jvmarg line="${debug-args-line}"/>
                     <jvmarg value="-Xrunjdwp:transport=${debug-transport},address=${jpda.address}"/>
@@ -801,7 +828,7 @@ is divided into following sections:
             <attribute default="jvm" name="jvm"/>
             <element name="customize" optional="true"/>
             <sequential>
-                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true">
+                <java classname="@{classname}" dir="${work.dir}" failonerror="${java.failonerror}" fork="true" jvm="${platform.java}">
                     <jvmarg line="${endorsed.classpath.cmd.line.arg}"/>
                     <jvmarg value="-Dfile.encoding=${runtime.encoding}"/>
                     <redirector errorencoding="${runtime.encoding}" inputencoding="${runtime.encoding}" outputencoding="${runtime.encoding}"/>
@@ -999,7 +1026,7 @@ is divided into following sections:
         <j2seproject3:copylibs manifest="${tmp.manifest.file}"/>
         <echo level="info">To run this application from the command line without Ant, try:</echo>
         <property location="${dist.jar}" name="dist.jar.resolved"/>
-        <echo level="info">java -jar "${dist.jar.resolved}"</echo>
+        <echo level="info">${platform.java} -jar "${dist.jar.resolved}"</echo>
     </target>
     <target depends="init,compile,-pre-pre-jar,-pre-jar,-do-jar-create-manifest,-do-jar-copy-manifest,-do-jar-set-mainclass,-do-jar-set-profile,-do-jar-set-splashscreen" if="do.archive" name="-do-jar-jar" unless="do.mkdist">
         <j2seproject1:jar manifest="${tmp.manifest.file}"/>
@@ -1208,10 +1235,13 @@ is divided into following sections:
                 </not>
             </and>
         </condition>
+        <exec executable="${platform.java}" failonerror="false" outputproperty="platform.version.output">
+            <arg value="-version"/>
+        </exec>
         <condition else="" property="bug5101868workaround" value="*.java">
-            <matches pattern="1\.[56](\..*)?" string="${java.version}"/>
+            <matches multiline="true" pattern="1\.[56](\..*)?" string="${platform.version.output}"/>
         </condition>
-        <javadoc additionalparam="-J-Dfile.encoding=${file.encoding} ${javadoc.additionalparam}" author="${javadoc.author}" charset="UTF-8" destdir="${dist.javadoc.dir}" docencoding="UTF-8" encoding="${javadoc.encoding.used}" failonerror="true" noindex="${javadoc.noindex}" nonavbar="${javadoc.nonavbar}" notree="${javadoc.notree}" private="${javadoc.private}" source="${javac.source}" splitindex="${javadoc.splitindex}" use="${javadoc.use}" useexternalfile="true" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}">
+        <javadoc additionalparam="-J-Dfile.encoding=${file.encoding} ${javadoc.additionalparam}" author="${javadoc.author}" charset="UTF-8" destdir="${dist.javadoc.dir}" docencoding="UTF-8" encoding="${javadoc.encoding.used}" executable="${platform.javadoc}" failonerror="true" noindex="${javadoc.noindex}" nonavbar="${javadoc.nonavbar}" notree="${javadoc.notree}" private="${javadoc.private}" source="${javac.source}" splitindex="${javadoc.splitindex}" use="${javadoc.use}" useexternalfile="true" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}">
             <classpath>
                 <path path="${javac.classpath}"/>
             </classpath>
diff --git a/nbproject/genfiles.properties b/nbproject/genfiles.properties
@@ -1,8 +1,8 @@
-build.xml.data.CRC32=dfd64344
+build.xml.data.CRC32=53a7d579
 build.xml.script.CRC32=c6b5575f
 build.xml.stylesheet.CRC32=8064a381@1.79.1.48
 # This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
 # Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
-nbproject/build-impl.xml.data.CRC32=dfd64344
-nbproject/build-impl.xml.script.CRC32=03e8f915
+nbproject/build-impl.xml.data.CRC32=53a7d579
+nbproject/build-impl.xml.script.CRC32=3066fa53
 nbproject/build-impl.xml.stylesheet.CRC32=05530350@1.79.1.48
diff --git a/nbproject/private/config.properties b/nbproject/private/config.properties
diff --git a/nbproject/private/private.properties b/nbproject/private/private.properties
@@ -1,2 +1,6 @@
 compile.on.save=true
+do.depend=false
+do.jar=true
+javac.debug=true
+javadoc.preview=true
 user.properties.file=C:\\Users\\manbhakr\\AppData\\Roaming\\NetBeans\\8.1\\build.properties
diff --git a/nbproject/project.properties b/nbproject/project.properties
@@ -1,9 +1,10 @@
 annotation.processing.enabled=true
 annotation.processing.enabled.in.editor=false
-annotation.processing.processor.options=
 annotation.processing.processors.list=
 annotation.processing.run.all.processors=true
 annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+application.title=Java8Features
+application.vendor=manbhakr
 build.classes.dir=${build.dir}/classes
 build.classes.excludes=**/*.java,**/*.form
 # This directory is removed when the project is cleaned:
@@ -26,6 +27,7 @@ dist.archive.excludes=
 dist.dir=dist
 dist.jar=${dist.dir}/Java8Features.jar
 dist.javadoc.dir=${dist.dir}/javadoc
+endorsed.classpath=
 excludes=
 includes=**
 jar.compress=false
@@ -36,8 +38,8 @@ javac.deprecation=false
 javac.external.vm=true
 javac.processorpath=\
     ${javac.classpath}
-javac.source=1.7
-javac.target=1.7
+javac.source=1.8
+javac.target=1.8
 javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}
@@ -58,7 +60,7 @@ main.class=java8features.Java8Features
 manifest.file=manifest.mf
 meta.inf.dir=${src.dir}/META-INF
 mkdist.disabled=false
-platform.active=default_platform
+platform.active=JDK_1.8
 run.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}
diff --git a/nbproject/project.xml b/nbproject/project.xml
@@ -4,6 +4,7 @@
     <configuration>
         <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
             <name>Java8Features</name>
+            <explicit-platform explicit-source-supported="true"/>
             <source-roots>
                 <root id="src.dir"/>
             </source-roots>
diff --git a/src/com/know/lambda/Lesson_00_Lambda_Expression.java b/src/com/know/lambda/Lesson_00_Lambda_Expression.java
@@ -11,15 +11,56 @@
  *  - NO NAME
  *  - NO RETURN TYPE
  *  - NO MODIFIER
- * 
+ *  - ADD ARROW SYMBOL
  * Lambda expression are introduced in java 8 to 
  * enable Functional Programming features in java.
  * Other Languages like Python, R, C , C++ 
  * already have Lambda Features.
  * 
+ * If we have function 
+ * 
+ * public void test(){ System.out.println("Test Function in java 7");}
+ * 
+ * then in java 8 we can create using no name , no return type and no modifier
+ * 
+ * Remove Public , void and test
+ * ()->{System.out.println("Test Function in java 8");}
+ * 
+ * we can remove braces in case of a single line
+ * () -> System.out.println("Cheers to Java 8");
+ * 
  * 
  * @author KnowGroup
  */
 public class Lesson_00_Lambda_Expression {
+   
+    public void test(){
+        System.out.println("Test function in java 7");
+    }
+    
+    @FunctionalInterface
+    interface Interf1{
+     abstract void m1();    
+    }
+    
+    interface Interf2{
+     abstract void m2(Integer i,Integer j);    
+    }
+    
+    interface Interf3{
+     abstract Integer m3(Integer i,Integer j);    
+    }
     
+    public static void main(String arg[]){
+        Interf1 if1 = () -> System.out.println("Cheers to Java 8");
+        if1.m1();
+        
+        Interf2 if2 = (i,j) -> System.out.println("Adding :: "+i+"+"+j+" = "+(i+j));        
+        if2.m2(10, 20);
+        
+        Interf3 if3 = (i,j) -> i*j;
+        Integer m3_result = if3.m3(12,10);
+        System.out.println("m3_result :: "+m3_result);        
+        
+    }    
 }
diff --git a/src/com/know/lambda/Lesson_01_FuntionalInterace.java b/src/com/know/lambda/Lesson_01_FuntionalInterace.java
