@Test public void testContainsElementToStringReturnsNull() { // 问题：如果 element.toString() 返回 null，会抛异常 assertThrows(NullPointerException.class ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Gizmodo may earn an affiliate commission. Reading time 7 minutes ...

Marika Taylor currently receives funding from EPSRC, STFC, UK government deparments and the European Horizon programme. In 1980, Stephen Hawking gave his first lecture as Lucasian Professor at the ...

Can you really solve a crime with pushpins and string? We're sorry, but something went wrong while fetching your podcast feeds. Please contact us at plus@slate.com ...

You can get string in Minecraft by killing spiders, striders, and cats. Your tamed cat can also bring you string as a gift. You also get string in various loot chests around the world and by breaking ...

We may receive a commission on purchases made from links. String trimmers go by plenty of names. Weed whacker, weed eater, line trimmer — they all do the same job, and that's cutting grass and weeds ...

The invisible string theory follows the idea that you are connected to your soulmate via a metaphorical string. While this belief can provide hope and comfort, it can also lead to people staying in an ...

GameSpot may get a commission from retail offers. While you can craft Minecraft string in one limited case, the easiest way to get it is to harvest it from enemies. If you want to hunt down this ...

String theory attempts to unify all forces and particles in the universe using vibrating strings. It aims to explain the Standard Model of particle physics, which is incomplete. String theory predicts ...