---
title: "Create a Cron Using Cron Expressions"
url: https://docs.catalyst.zoho.com/en/sdk/java/v1/job-scheduling/cron/create-cron-cron-expressions/
description: "This page describes the Java method to create a cron defined using Cron Expressions with sample code snippets."
last_updated: 2026-09-08T11:07:33Z
service: Job Scheduling
type: general
related_links:
  - name: "Component Help Documentation"
    url: /en/job-scheduling/help/cron/key-concepts/#cron-expressions
  - name: "JavaScript SDK Documentation"
    url: /en/sdk/javascript/v1/job-scheduling/cron/create-cron-expressions/
  - name: "Python SDK"
    url: /en/sdk/python/v1/job-scheduling/cron/create-cron-cron-expressions/
  - name: "REST API Collection"
    url: /en/api/code-reference/job-scheduling/cron/create-cron/create-cron-cron-exp/#CreateaCronUsingCronExpressions
---

# Create a Cron Using Cron Expressions

Use this SDK to implement crons to schedule the submission of jobs to job pools. However, the configuration of the cron will be defined using regex-like expressions called [Cron Expressions](https://docs.catalyst.zoho.com/en/job-scheduling/help/cron/key-concepts/#cron-expressions).

> **Note:** In the following SDK, the cron has been configured using Cron Expressions, to submit a job to the job pool on **0Hrs 0Mins 0Secs** on **every 1st day of the week** on the **1st month of every year**.

#### Sample Code Snippet 

**Package Imports**

```java
import com.zc.component.jobscheduling.beans.cron.ZCCronDetails;
import com.zc.component.jobscheduling.beans.cron.ZCCronBuilder;
import com.zc.component.jobscheduling.beans.job.ZCJobBuilder;
import com.zc.component.jobscheduling.beans.job.ZCJobMetaDetail;
import org.json.simple.JSONObject;
```

```java
// generate function job meta
ZCJobMetaDetail jobMeta = ZCJobBuilder.functionJobBuilder() // get function job builder
    .setJobConfig(2, 15 * 60 l) // set job config - job retries => 2 retries in 15 mins (optional)
    .setJobpoolName("functions_jobpool") // set the name of the function jobpool (optional) (either jobpoolId or jobpoolName is mandatory)
    // .setJobpoolId(1234567890L) // set the Id of the function jobpool (optional) (either jobpoolId or jobpoolName is mandatory)
    .setTargetName("target_function") // set target function's name (optional) (either TargetName or TargetId is mandatory)
    // .setTargetId(1234567890L) // set the target function's Id (optional) (either TargetName or TargetId is mandatory)
    .setParams(new JSONObject() {
        {
            put("arg1", "job");
            put("arg2", "test");
        }
    }) // set params to be passed to target function (optional)
    .setJobName("job_name") // set job name
    .build(); // build job meta
// generate cron details
ZCCronDetails expressionCronDetails = ZCCronBuilder.zcExpressionCronBuilder() // get expression corn builder
    .setCronStatus(true) // set cron as enabled
    .setCronExpression("0 0 * 1 1") // set the UNIX cron expression
    // .setTimezone("America/Los_Angeles") // set the timezone (optional)
    .setCronName("expression_cron") // set cron name
    .setCronDescription("expression_cron") // set corn description (optional)
    .setJobMeta(jobMeta) // set job meta
    .build(); // build cron details
// create expression cron
ZCCronDetails expressionCron = jobScheduling.cron.createCron(expressionCronDetails);

```

> **Note:** We urge you to use this SDK to configure only [Dynamic Crons](https://docs.catalyst.zoho.com/en/job-scheduling/help/implementation/submit-job-dynamic-cron/). Use the *UI Builder* to configure [Pre-defined Crons](https://docs.catalyst.zoho.com/en/job-scheduling/help/implementation/submit-job-predefined-cron/).