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Commit 3f1a3e9

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‎.gitignore‎

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# Project exclude paths
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/out/

‎.idea/.gitignore‎

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‎.idea/description.html‎

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‎.idea/encodings.xml‎

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‎.idea/misc.xml‎

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‎.idea/modules.xml‎

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‎.idea/project-template.xml‎

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‎.idea/uiDesigner.xml‎

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‎LambdaExpression.iml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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package com.company;
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import java.util.Arrays;
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import java.util.List;
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import java.util.function.Consumer;
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public class ConsumerInterface {
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public static void main(String[] args) {
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List<Integer> val= Arrays.asList(1,2,3,4,5,6);
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//consumer interface is @FunctionalInterface accepts only one parameter as agrument of type Generics
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//1. method
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Consumer<Integer> c= new Consumer<Integer>() {
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@Override
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public void accept(Integer integer) {
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System.out.println(integer);
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}
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};
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val.forEach(c);
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//2. modification
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/*
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Consumer<Integer> cs= i -> System.out.println(i);
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val.forEach(cs);*/
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//3. More modification using consumer interface
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val.forEach(new Consumer<Integer>() { //anonymous class
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@Override
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public void accept(Integer i) {
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System.out.println(i);
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}
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});
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// 3 types of interface
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//Normal interface
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//marker interface -> without any method
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// SAM interface -> Single abstract method interface
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// SAM interface is now known as functional interface
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//only one method declared in case of Functional Interface
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}
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}

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