Access token acquisition for multiple applications

I am using msal4j to create an authentication authorization web app that works with azureAD.

https://github.com/Azure-Samples/ms-identity-java-webapp/tree/master/msal-java-webapp-sample

I have run the above sample with springboot, and this sample only authenticates and authorizes one application. However, I would like to authenticate and authorize multiple applications and obtain access tokens.

After I get the access token for the first app, I rewrite the client id, secret And

https://github.com/Azure-Samples/ms-identity-java-webapp/blob/master/msal-java-webapp-sample/src/main/java/com/microsoft/azure/msalwebsample/AuthFilter.java#L65-L69

By using this code I was able to get the token for the second app. However, with this method, I had to enter my username and password twice. It is very tedious and I would like to be able to enter only the first time and not the rest of the time.

Thanks