public static void main(String[] args) {

List<String> list = Arrays.asList("44", "373", "xyz");

List<Integer> list1 = Arrays.asList(1,0);

// list1.forEach(handleGenericException(s-> System.out.println(10/s),ArithmeticException.class));

// list.forEach(handleGenericException(s -> System.out.println(Integer.parseInt(s)),NumberFormatException.class));

// List<Integer> intList = list.stream().map(Integer::parseInt).collect(Collectors.toList());

// System.out.println(intList);

//handle exception for checkedException

List<Integer> list2 = Arrays.asList(10,20);

list2.forEach(handleCheckedExceptionConsumer(i->{

Thread.sleep(i);

System.out.println(i);

}));

}

//approach -2

public static void printList(String s) {

try {

System.out.println(Integer.parseInt(s));

} catch (Exception ex) {

System.out.println("exception : " + ex.getMessage());

}

}

static Consumer<String> handleExceptionIfAny(Consumer<String> payload) {

return obj -> {

try {

payload.accept(obj);

} catch (Exception ex) {

System.out.println("exception : " + ex.getMessage());

}

};

}

static <Target, ExObj extends Exception> Consumer<Target> handleGenericException(Consumer<Target> targetConsumer,

Class<ExObj> exObjClass) {

return obj -> {

try {

targetConsumer.accept(obj);

} catch (Exception ex) {

try {

ExObj exObj = exObjClass.cast(ex);

System.out.println("exception : " + exObj.getMessage());

} catch (ClassCastException ecx) {

throw ex;

}

}

};

}

static <Target> Consumer<Target> handleCheckedExceptionConsumer(CheckedExceptionHandlerConsumer<Target,Exception> handlerConsumer){

return obj -> {

try {

handlerConsumer.accept(obj);

} catch (Exception ex) {

throw new RuntimeException(ex);

}

};

}