java 8 function supplier consumer

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showing results for - "java 8 function supplier consumer"
Oskar
28 Aug 2016
1@Testpublic void supplierWithOptional(){    
2  Supplier<Double> doubleSupplier = () -> Math.random();   
3  Optional<Double> optionalDouble = Optional.empty();    
4  System.out.println(optionalDouble.orElseGet(doubleSupplier));}
Eleanor
15 Jul 2017
1@Testpublic void whenNamesPresentUseBothConsumer(){    
2  List<String> cities = Arrays.asList("Sydney", "Dhaka", "New York", "London");   
3  Consumer<List<String>> upperCaseConsumer = list -> {        
4    for(int i=0; i< list.size(); i++){            
5      list.set(i, list.get(i).toUpperCase());        
6    }    
7  };    
8  Consumer<List<String>> printConsumer = list -> list.stream().forEach(System.out::println);    
9  upperCaseConsumer.andThen(printConsumer).accept(cities);}
Arthur
12 Nov 2018
1@Testpublic void whenNamesPresentUseBothConsumer(){    
2  List<String> cities = Arrays.asList("Sydney", "Dhaka", "New York", "London");    
3  Consumer<List<String>> upperCaseConsumer = list -> {
4    for(int i=0; i< list.size(); i++){            
5      list.set(i, list.get(i).toUpperCase());        
6    }    
7  };    
8  Consumer<List<String>> printConsumer = list -> list.stream().forEach(System.out::println);    
9  upperCaseConsumer.andThen(printConsumer).accept(cities);}
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