\n\tAdvantages of Lambda\n<\/p>\n
\r\npackage com.bell.b11.day19;\r\n\r\n\r\npublic class HelloWorld {\r\n\r\n public static void main(String[] args) {\r\n HelloWorld hw = new HelloWorld();\r\n\r\n int a =20;\r\n\r\n Introduction i = new Introduction() {\r\n @Override\r\n public void sayHello() {\r\n System.out.println("Hello Welcome java object world");\r\n }\r\n };\r\n i.sayHello();\r\n\r\n\r\n Introduction var = () -> System.out.println("Hello Welcome java functional world");\r\n\r\n Introduction var1 = () -> {\r\n System.out.println("Hey Hey");\r\n System.out.println("Hum thum");\r\n };\r\n var.sayHello();\r\n var1.sayHello();\r\n\r\n Addition addObj = new AddImp();\r\n System.out.println(addObj.add(10,20));\r\n\r\n\r\n Addition var12 = (int y, int z) ->y+z;\r\n System.out.println( var12.add(20,30));\r\n\r\n\r\n Operation operation = new OperImpl();\r\n System.out.println(operation.oper("multiply",10,20));\r\n\r\n Operation funVar = (String type, int p, int q) ->{\r\n if (type.equals("add")) {\r\n return p+q;\r\n }else if(type.equals("multiply")){\r\n return p*q;\r\n }else if(type.equals("division")){\r\n if(q==0){\r\n return 0;\r\n }\r\n return p\/q;\r\n }\r\n return 0;\r\n };\r\n\r\n display(funVar);\r\n\r\n }\r\n\r\n static void display(Operation o){\r\n\r\n System.out.println(o.oper("multiply",25,35));\r\n System.out.println(o.oper("division",10,0));\r\n\r\n }\r\n\r\n}\r\n\r\n\r\ninterface Introduction{\r\n void sayHello();\r\n}\r\n\r\ninterface Dummy{\r\n void sayHello(String name);\r\n}\r\n\r\ninterface Addition{\r\n int add(int a, int b);\r\n}\r\n\r\nclass AddImp implements Addition{\r\n\r\n @Override\r\n public int add(int a, int b) {\r\n return a+b;\r\n }\r\n}\r\n\r\ninterface Operation{\r\n int oper(String type,int a, int b);\r\n\r\n}\r\n\r\nclass OperImpl implements Operation{\r\n\r\n @Override\r\n public int oper(String type, int a, int b) {\r\n if (type.equals("add")) {\r\n return a+b;\r\n }else if(type.equals("multiply")){\r\n return a*b;\r\n }else if(type.equals("division")){\r\n return a\/b;\r\n }\r\n return 0;\r\n }\r\n}<\/pre>\n\n\t
\n\t– Enables functional programming
\n\t– elimates boiler platecode
\n\t– enables support for parllel processing\n<\/p>\n
\n\tWhat is functional programming vs Object Oriented Programming
\n\t– Better code , Readable & maintainable code\n<\/p>\n
\n\t– You don't have to specify the name of the method or return type or visibility modifier
\n\t variable = () -> { logic}\n<\/p>\n
\n\t \n<\/p>\n
\n\t <\/p>\n","protected":false},"excerpt":{"rendered":"
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