Daud questions

• Why can't we autowire an abstract class inside a concrete class in Spring?
• spring security - how to make another user log out
• What's the use of Content-Type header when the response is an attachment?
• Why can a button's height be specified even if we make it inline explicitly?
• Struts 2 checkbox : What's the use of the value attribute when the fieldValue can only be true or false?
• Join a table with one table if condition1 is true and with another table if condition1 is false?
• Spring boot test: @Sql annotation Unable to locate sql files placed in src/test/resources
• Autoboxing/widening occurs in Short a=3 but not in Float a=3;
• Since WebClient's uploadData doesn't encode data, then what will be the effect of adding a "Content-Type", "multipart/form-data" header to it
• Using replace and regex to capitalize first letter of each word of a string in JavaScript

Daud answers