我写了下面的方法,它接受 BiConsumer<Object, Object>
,当我传递方法 testBiConsumer(String a, String b)
的方法引用时我收到一个编译错误,指出:
Multiple markers at this line
- The method biConsumerTest(String, String, BiConsumer<Object,Object>) in the type Test is not applicable for the arguments (String, String,
Test::testBiConsumer)
- The type Test does not define testBiConsumer(Object, Object) that is applicable here
如果我将 BiConsumer 从 BiConsumer<Object, Object>
更改为至BiConsumer<String , String >
它工作得很好。
如何使下面的代码工作?我要 public static void biConsumerTest(String a, String b, BiConsumer<String, String> biConsumer)
是通用的。
public class Test {
public static void main(String[] args){
Test.biConsumerTest("A", "B", Test::testBiConsumer);
}
public static void biConsumerTest(String a, String b, BiConsumer<Object, Object> biConsumer){
biConsumer.accept(a, b);
}
public static void testBiConsumer(String a, String b) {
System.out.println(a);
System.out.println(b);
}
}
最佳答案
代码看起来有点有趣,并且不清楚您实际上要实现什么,但要使其通用:
public class Test {
public static void main(String[] args) {
Test.biConsumerTest("A", "B", Test::testBiConsumer);
}
public static <T> void biConsumerTest(T a, T b, BiConsumer<T, T> biConsumer) {
biConsumer.accept(a, b);
}
public static <S> void testBiConsumer(S a, S b) {
System.out.println(a);
System.out.println(b);
}
}
关于java - 测试 BiConsumer 时出现编译错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/41488534/