Hello @nnv_saka
You can use the ScheduleHandle.trigger
method ScheduleHandle - temporal-sdk 1.20.0 javadoc
There is an example here samples-java/core/src/main/java/io/temporal/samples/hello/HelloSchedules.java at 307a2df3e5adc269fb21d8a7e8afdd001d9ef72d · temporalio/samples-java · GitHub
Let us know if it helps
Antonio