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Java 8 Lambda Expressions
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public class Calculator { | |
interface IntegerMath { | |
int operation(int a, int b); | |
} | |
public int operateBinary(int a, int b, IntegerMath op) { | |
return op.operation(a, b); | |
} | |
public static void main(String... args) { | |
Calculator myApp = new Calculator(); | |
IntegerMath addition = (a, b) -> a + b; | |
IntegerMath subtraction = (a, b) -> a - b; | |
System.out.println("40 + 2 = " + myApp.operateBinary(40, 2, addition)); | |
System.out.println("20 - 10 = " + myApp.operateBinary(20, 10, subtraction)); | |
} | |
} |
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