OnJava8-Examples/generics/Apply.java at master · CSapprenticeWT/OnJava8-Examples · GitHub

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// generics/Apply.java

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

import java.lang.reflect.*;

import java.util.*;

public class Apply {

public static <T, S extends Iterable<T>>

void apply(S seq, Method f, Object... args) {

try {

for(T t: seq)

f.invoke(t, args);

} catch(IllegalAccessException |

IllegalArgumentException |

InvocationTargetException e) {

// Failures are programmer errors

throw new RuntimeException(e);

}