How know a variable is read or modified using JavaParser

I am using JavaParser to parse Java applications. I need a function to return the number of cases that a variable in a method body is read or modified. As an example, the function should determines variable x in the below code is read two times and one time is modified.

private int foo(){
  int x;
  System.out.println(x); //Read
  x = 10; //modify
  bar(x); //read
}

so far I wrote this code.

for (ClassOrInterfaceDeclaration cd : cu.findAll(ClassOrInterfaceDeclaration.class)) {
				
	for (MethodDeclaration method : cd.getMethods()) {
					
		method.getBody().ifPresent(blockStatement -> {
					
			for( VariableDeclarator variable : blockStatement.findAll(VariableDeclarator.class)) {

				for (NameExpr nameExp : blockStatement.findAll(NameExpr.class)) {
							
					if (nameExp.getNameAsString().equals(variable.getNameAsString())) {
						System.out.println(nameExp.getNameAsString());
					}
				}
			}
		});
	}
}

Using this code I can know the variable x is used three times in the method body, but I can not distinguish between read and write. Let me know what is the best way to do this using JavaParser.

I was able to solve the question using the code below:

for (NameExpr nameExpr : callingMethod.findAll(NameExpr.class)) {

	ResolvedValueDeclaration calledVariable = nameExpr.resolve();

	String variableName = calledVariable.getName();
	String variableType = calledVariable.getType().describe();
				
	String type = "Read";

	Node parentNode = nameExpr.getParentNode().get();
	if (parentNode instanceof AssignExpr) {
					
		Expression target = ((AssignExpr)parentNode).getTarget();
					
		//Note that arrayAccessExp is not covered in this code
		if (target.isNameExpr()) {
			if (target.asNameExpr().getNameAsString().equals(variableName)) 
					type = "Write";
		}
	}
}