Question : sort hash in perl

%aList = ('car'=>300,'train'=>150,'truck'=>100,'bike'=>330);

I need to write a program to sort this by the order of key and value respectively without
using the sort functions provided by the language

Answer : sort hash in perl

If you were interviewing with me, you'd be in trouble until you explained that you didn't really mean "sort the hash". The elements of the hash can be retrieved in a specific order, most commonly by sorting the keys. And there are modules that support expanded hash objects with additional properties, such as maintaining the insertion order.