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Extension private field in java

I read the Spring Data source and meet a question: JdbcTemplate has a method: and I find that this.dataSource is from it`s father class JdbcAccessor.declearing as follow my question is: why extension class JdbcTemplate can access its father class`s private field? I try to use it as follow and find IDE show its wrong Answer It can not. Most likely

Write unit test for jdbcTemplate.batchUpdate() method

I have jdbcTemplate code, on which I am trying to write a unit test case. But the problem is I am unable to cover the full code. I am able to cover till: try{jdbcTemplate.batchUpdate(“update query”, new BatchPreparedStatementSetter(){ Test code snippet Please help. Answer Here the difficulty is that the new BatchPreparedStatementSetter(){ …} instance that contains the main logic that you

how to execute remote commands using apache mina sshd

I am trying to execute remote commands on an SSHServer running on my local windows machine. I am able to run simple command like “whoami” but failing to run something like “java -version” or “dir” Here is my code so far, can you tell where I am going wrong? SSHServer.java SSHClient.java TestSSH.java here is the output for “whoami”: here is

How to search for a string in a pdf document [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations. Closed 2 years ago. Improve this question I have a pdf document which contains images, hyperlinks , words

Power set of an input set as custom collection

I have been reading the Effective Java book and I have stuck with this code I am unable to understand how this code is generating power set. Code: Output: Can someone explain how this code is generating powerset of a given set. Answer The code uses the binary representation of the index number as a map of which element of

Controller Endpoint Naming Convention

I have a controller endpoint and I need help with the naming convention. Basically, the endpoint is supposed to find a customer by their Id/Email (which is sent in the url of the request). Thus I need to have two endpoints, one for users/{id} and one for users/{email}. The issue is, the above wouldn’t work as the routes are exactly

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