Check out example codes for "how to add multiple filter condition in Java stream filter chain". It will help you in understanding the concepts better.

Code Example 1

import java.util.ArrayList;
import java.util.List;
import java.util.function.Predicate;
import java.util.stream.Collectors;
 
public class Main 
{
    public static void main(String[] args) 
    {
        List<Employee> employeeList = getEmployeesFromDataSource();
         
        //filter 1
        Predicate<Employee> isEmployeeActive = e -> e.getStatus() == EmployeeStatus.ACTIVE;
 
        //filter2
        Predicate<Employee> isAccountActive = e -> e.getAccount().getStatus() == AccountStatus.ACTIVE;
         
        //Active employees
        String result = employeeList.stream()
                .filter(isEmployeeActive)
                .map(e -> e.getId().toString())
                .collect(Collectors.joining(",", "[", "]"));
         
        System.out.println("Active employees = " + result);
         
        //Active employees with active accounts
        result = employeeList.stream()
                .filter(isEmployeeActive.and(isAccountActive))
                .map(e -> e.getId().toString())
                .collect(Collectors.joining(",", "[", "]"));
         
        System.out.println("Active employees with active accounts = " + result);
         
        //Active employees with inactive accounts
        result = employeeList.stream()
                .filter(isEmployeeActive.and(isAccountActive.negate()))
                .map(e -> e.getId().toString())
                .collect(Collectors.joining(",", "[", "]"));
         
        System.out.println("Active employees with inactive accounts = " + result);
         
        //Inactive employees with inactive accounts
        result = employeeList.stream()
                .filter(isEmployeeActive.negate().and(isAccountActive.negate()))
                .map(e -> e.getId().toString())
                .collect(Collectors.joining(",", "[", "]"));
         
        System.out.println("Inactive employees with inactive accounts = " + result);
    }
     
    private static List<Employee> getEmployeesFromDataSource() {
        List<Employee> employeeList = new ArrayList<>();
         
        employeeList.add(new Employee(1L, "A", "AA", EmployeeStatus.ACTIVE, 
                new Account(1001L, "Saving - 1001", "Saving", AccountStatus.ACTIVE)));
        employeeList.add(new Employee(2L, "B", "BB", EmployeeStatus.ACTIVE, 
                new Account(1002L, "Checking - 1002", "Checking", AccountStatus.ACTIVE)));
        employeeList.add(new Employee(3L, "C", "CC", EmployeeStatus.ACTIVE, 
                new Account(1003L, "Deposit - 1003", "Deposit", AccountStatus.ACTIVE)));
        employeeList.add(new Employee(4L, "D", "DD", EmployeeStatus.ACTIVE, 
                new Account(1004L, "Saving - 1004", "Saving", AccountStatus.INACTIVE)));
        employeeList.add(new Employee(5L, "E", "EE", EmployeeStatus.ACTIVE, 
                new Account(1005L, "Checking - 1005", "Checking", AccountStatus.INACTIVE)));
        employeeList.add(new Employee(6L, "F", "FF", EmployeeStatus.ACTIVE, 
                new Account(1006L, "Deposit - 1006", "Deposit", AccountStatus.BLOCKED)));
         
        return employeeList;
    }
}

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