# Coding Task: Task Manager (Java)
In Livepeer we execute Tasks in Task Executor. This process follows two rules:
1. Execute the task only if Task Executor is not busy.
2. Tasks are executed sequentially.
Implement Task Manager with the mechanism to **queue, execute, and retry** tasks.
```java
public interface TaskExecutor {
int getLastSeqN();
boolean isBusy();
void execute(Task task);
}
public class Task {
private int seqN;
// Task data, not related to this exercise
private Object data;
}
public class TaskManager {
public void execute(Task task, TaskExecutor executor) {
// Naive implementation that executes each task, no matter of isBusy and seqN
executor.execute(task);
}
}
```