AT&T interview questions

- How to make a list readonly, ie, calling .add() will throw error - Diff b/w parallel stream and stream - What is static - Diff b/w String, StringBuilder, StringBuffer - Swap two values without using a 3rd var - concurrency and thread questions - Can we add a null value of the root in treehashset - What is the output of the snippet: try { a = b / 0; } catch (Exception e) { // do something } catch (Arithmetic Exception) { // do something } - What is try-with-Resources? - How to connect to any particular db in spring boot - What is autowired and why is it used - What is dependency injection