Can someone please explain to me why in withdraw() it needs to add a return, but in deposit() it doesnt need it? Answer The return keyword means “give this value back to the caller”. withdraw() gives the caller back an int, deposit() gives the caller back nothing. Since deposit() doesn’t give any info back to the caller, it doesn’t return
Not able to inject Map into the object while testing with Mockito
I am trying to test a method of hashMap using Mockito but its not working as expected. My Class My test class Its giving 0L instead of 2L. Answer Only reflection can help with private static field:
Some Response headers not showing
These are the response headers I get when I try to fetch the headers But when I try to get all headers through my code it does not show the location header. Here is my code Can someone please tell me why the location header is missing Answer First of all try to get content, which you get from URLConnection,
Java alternative of javascript dynamically constructed object
I’ve been trying to build an object of some sort which allows dynamic key adding/removing, similar to javascript objects. I’m trying to do something like this in java(code below is javascript): I’ve tried doing: Although that definitely won’t work as “String cannot be converted to int”. Answer In Java, the Map interface provides similar functionality. One such implementation is HashMap.
java.lang.IllegalArgumentException: Unable to resolve the Configuration with the provided Issuer
I’m trying to make a working demo using Spring Boot as a Resource Server and Keycloak as an Authorization Server. Here is project code snippets: pom.xml App.java AppRestController.java application.properties I’m running Keycloak on the port 8083. Get request to the http://localhost:8083/realms/realm_1/.well-known/openid-configuration returns the following response: To get an access token, I send a post request to the http://localhost:8083/realms/realm_1/protocol/openid-connect/token with password
How can I use IN query with NamedParameterJdbcTemplate?
How can I use IN query with NamedParameterJdbcTemplate? I put ‘surname1′,’surname2′ and surname1’,’surname2 in params, so :surname would be ‘surname1′,’surname2’, but both didn’t work. When there was only gender parameter, it worked. How can I do this? Answer if we have an Object like this: then:
Java integer increases unintended
I have a function that takes String and a char[] type variables as parameter. String line is a line of ascii art and the char[] fileChars consists of the characters that are used in the string mentioned beforehand. Example of line: “@@@@@@@@@@—” Example of fileChars: [-, @] Algorithm works in the following manner: given a row of data, the algorithm
Is there a better way to write my if statement?
I have a function that checks if multiple conditions are fulfilled before performing an operation. The code below shows all conditions that must be fulfilled. This code works perfectly as is. However, is there a better way of writing my if statements? Something about the look of it just feels wrong, feels verbose. Answer Perhaps the question is specifically about
JPA integrity constraint violated – parent key not found when trying to save entity with JoinColumn
I am trying to save a User Entity with Roles under it. It seems like since the roles do not have their user id foreign key set it fails to save, is there a way to tell jpa to set the role’s user id after it saves the user but before it saves the user’s roles? Or will I need
Where is the “jsp” taglib TLD?
In a special case, I need to make the same as <jsp:useBean in Java class. It sounds like using org.apache.commons.beanutils.BeanUtils.cloneBean(Object bean) will do the work. But what is driving me crazy is that I can’t find the TLD associated to <jsp: tags, nor the class used by <jsp:useBean. Even <short-name>jsp</short-name> on Google gives me nothing. The JSP specs I found