Update README to use bazelisk and add ".bazelversion" for PipelienDP4j

Change-Id: I555f2cf1e4c93f060c52d0f20824b6857c860b26
GitOrigin-RevId: d3bcbb98f461ec05630777287830626856a1e11d

README.md

@@ -60,51 +60,52 @@ experimental and subject to change.
 
 ## How to Build
 
-In order to run the differential privacy library, you need to install Bazel in
-version 5.3.2, if you don't have it already.
-[Follow the instructions for your platform on the Bazel website](https://docs.bazel.build/versions/main/install.html)
+In order to run the differential privacy library, you need to install bazelisk,
+if you don't have it already. Bazelisk manages [Bazel](https://bazel.build/)
+versions and installs correct one.
+[Follow the instructions for your platform on the bazelisk github page](https://github.com/bazelbuild/bazelisk?tab=readme-ov-file#installation)
 
 You also need to install Git, if you don't have it already.
 [Follow the instructions for your platform on the Git website.](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git)
 
-Once you've installed Bazel and Git, open a Terminal and clone the
+Once you've installed bazelisk and Git, open a Terminal and clone the
 differential privacy directory into a local folder:
 
 ```shell
 git clone https://github.com/google/differential-privacy.git
 ```
 
 Navigate into the `differential-privacy` folder you just created,
-and build the differential privacy library and dependencies using Bazel
+and build the differential privacy library and dependencies using bazelisk
 (note: *...* is a part of the command and not a placeholder):
 
 To build the C++ library, run:
 ```shell
 cd cc
-bazel build ...
+bazelisk build ...
 ```
 To build the Go library, run:
 ```shell
 cd go
-bazel build ...
+bazelisk build ...
 ```
 
 To build the Java library, run:
 ```shell
 cd java
-bazel build ...
+bazelisk build ...
 ```
 
 To build the PipelineDP4j library, run:
 ```shell
 cd pipelinedp4j
-bazel build ...
+bazelisk build ...
 ```
 
 To build Privacy on Beam, run:
 ```shell
 cd privacy-on-beam
-bazel build ...
+bazelisk build ...
 ```
 
 You may need to install additional dependencies when building the PostgreSQL

pipelinedp4j/.bazelversion

@@ -0,0 +1 @@
+7.3.1

pipelinedp4j/README.md

@@ -40,7 +40,7 @@ You can look at it if you need something beyond the example.
 
 The easiest way to start using the library in your project is to use the
 dependency from Maven repository. You can find it
-[here](https://mvnrepository.com/artifact/com.google.privacy.differentialprivacy/pipelinedp4j).
+[here](https://mvnrepository.com/artifact/com.google.privacy.differentialprivacy.pipelinedp4j/pipelinedp4j).
 After adding this dependency into your project you can write the same code as in
 the example above and it will compile.