FullExceptionUtil.java

import java.util.Optional;

public class ExceptionUtil {
    public interface MayThrow<R>{
        public R method() throws Exception;
    }
    
    public static <T> T tryBlock(MayThrow<T> throwing) {
        try{
            T obj = throwing.method();
            return obj;
        } catch(Exception e) {
            System.out.println(e.getLocalizedMessage());
            return null;
        }
    }
    
    public static <T> Optional<T> tryBlockOptional(MayThrow<T> throwing) {
        try{
            return Optional.ofNullable(throwing.method());
        } catch(Exception e) {
            return Optional.empty();
        }
    }
}