Java_8_9_10_11_12_13

• URL : https://www.udemy.com/course/java-latest-programming-from-zero-java13-java12-java11-java10-java9-j8/learn/lecture/17818988#overview
• Common SQL Clauses and Their Equivalents in Java 8 Streams https://dzone.com/articles/common-sql-clauses-and-their-equivalents-in-java-8-1

SQL	JAVA API
FROM	of(),stream()
WHERE	filter()
SELECT RESULT	Collect(Collector.toList()) //toSet(),toCollection(Supplier collectionFactory)
Concatinate all the colums	productList.stream().map(Product::getName).collect(Collectors.joining("", "", ""["", ""]""));"
Sum	int summingPrice = productList.stream() .collect(Collectors.summingInt(Product::getPrice));"
Average	double averagePrice = productList.stream() .collect(Collectors.averagingInt(Product::getPrice));
Collecting statistical information	"IntSummaryStatistics statistics = productList.stream().collect(Collectors.summarizingInt(Product::getPrice));"
Group BY	Map<Integer, List> collectorMapOfLists=productList.stream() .collect(Collectors.groupingBy(Product::getPrice));"
PartitionBy	"Map<Boolean, List> mapPartioned = productList.stream().collect(Collectors.partitioningBy(element -> element.getPrice() > 15));"
Group BY and select from Outer Query	Set unmodifiableSet = productList.stream() .collect(Collectors.collectingAndThen(Collectors.toSet(), Collections::unmodifiableSet));

• 

Section 1: Introduction

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Section 2: Lambda Expressions

• Example https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/lambda/SumOfNumbersUsingCallable.java

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Section 3: Functional Interfaces and Lambda

• Consumer example

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/ConsumerExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/ConsumerExample2.java
3. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/ConsumerExample3.java

Biconsumer

• Biconsumer Examples

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/BiConsumerExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/ConsumerExample3.java

Predicate

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/PredicateExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/PredicateExample2.java
3. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/PredicateExample3.java

• PredicateAndBiConsumerExample

4. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/PredicateAndBiConsumerExample.java

• BiPredicateExample

5. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/BiPredicateExample.java

Function Interface

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/FunctionExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/FunctionExample2.java

BiFunction Interface

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/BiFunctionExample.java

Unary Operator

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/UnaryOperatorExample.java

Binary Operator

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/BinaryOperatorExample.java

Supplier Interface

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/SupplierExample.java

Method Reference

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/MethodReferenceExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/ConvertToMethodReferenceExample.java

Java8 FunctionalInterfaces with Methods

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Section 4: Lambda Variable Scope

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/VariableScope.java

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Section 5: Bank Transfer

1. https://github.com/jdbirla/JD_JAVA_Learning/tree/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/funcprogramming/realexample

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Section 6: Streams

Debug Stream using peek method

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamExample.java

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamVsCollectionExample.java

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Section 7: Streams Operations

Map

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/MapExample.java

FlatMap

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/FlatMapExample.java

distinct,count,sorted, allmatch

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamsOperations.java

customized sort using comparator

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamComparatorExample.java

filter

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/FilterExample.java

Reduce

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamReduceExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamReduceExample2.java

map + filter + reduce

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamMapFilterReduceExample.java

Max

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamMaxExample.java

Min

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamMinExample.java

limit and skip

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamLimitAndSkipExample.java

findAny() and findFirst()

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamFindAnyAndFirstExample.java

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Section 8: Streams Generators

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/StreamFactoryMethodExample.java

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Section 9: Numeric Streams

intStream,LongStream,DoubleStream

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/IntStreamExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/LongStreamExample.java
3. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/DoubleStreamExample.java

Numeric Stream Aggregate Functions

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/NumericStreamAggregateExample.java

Boxing and Unboxing

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/BoxingUnBoxingExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/MapToObjLongDoubleExample.java

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Section 10: Collectors Operations

joining

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/JoiningExample.java

counting

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/CountingExample.java

mapping

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/CollectorMappingExample.java

minby() and maxBy()

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/CollectorsMinMaxExample.java

summingInt() and averagingInt()

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/CollectorSummingAveragingExample.java

groupingBy

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/GroupingByExample1.java

2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/GroupingExample2.java

3. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/GroupingExample3.java

GroupingMinMaxAvgExample

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/GroupingMinMaxAvgExample.java

partitioningBy()

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/streams/PartitioningByExample.java

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Section 11: Parallel Stream

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/parallelstream/ParallelStreamExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/parallelstream/StreamPerformanceExample.java
3. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/parallelstream/StreamPerformanceExample1.java

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Section 12: Optional java8+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/optional/OptionalExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/optional/OptionalIfIsExample.java
3. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/optional/OptionalOfEmptyExample.java
4. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/optional/OptionalOrElseThrowExample.java

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Section 13: Default and Static Methods ot Interfaces

1. https://github.com/jdbirla/JD_JAVA_Learning/tree/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/defaults

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Section 14: New DateTime APIs

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Section 15:Java Shell(REPL)- Java9+

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Section 16 : Module System- Java9+

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Section 17: Factory Methods for Collection - Java9+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/factorymethods/FactoryMethodsExample.java

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Section 18: Try-with-resources - Java9+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/java9improvements/TryWithResourcesExample.java

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Section 19: Try Interference with var - Java10+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/javaimprovements/TypeInterferenceExample.java

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Section 20: GC1 Improvements- Java 10+

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Section 21: var with Lambda - Java11+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/javaimprovements/VarWithLambdaExample.java

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Section 22: Epsilon GC - Java11+

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Section 23: New Http Client - Java11+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/javaimprovements/HttpClientExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/javaimprovements/AsyncHttpClient.java

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Section 24: Switch Expression - Java12+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/java9improvements/SwitchStatementExample.java
2. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/java9improvements/SwitchExpressionsExample1.java
3. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/java9improvements/SwitchExpressionExample2.java

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Section 25: Switch Expression Enhancements- Java13+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/java9improvements/SwitchExpressionEnhancementExample.java

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Section 26: Text Blocks - Java13+

1. https://github.com/jdbirla/JD_JAVA_Learning/blob/master/Java_8_9_10_11_12_13/LambdaExpression/src/com/modernjava/java9improvements/MultiLineTextBlockExample.java

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