代码
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import java.util.function.BinaryOperator;
public class LambdaTest1 {
public static void main(String[] args) {
final int delta = -1;
BinaryOperator<Integer> add = (x, y) -> x+y+delta;
Integer apply = add.apply(1, 2);//结果是2
System.out.println(apply);
}
}
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