What is the difference between $name and $$name?

962

What exactly is quality control?

1127

To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

1948

How do you sort objects in java?

918

What is the transaction code to run MRP for sales order?

2282

Can you explain how long are locks retained within the repeatable_read and serializable isolation levels, during a read operation with row-level locking?

954

What is elementary search help? : sap abap data dictionary

970

Why acetic has less conductivity than hcl?

1105

How can Spark be connected to Apache Mesos?

319

why not override thread to make a runnable? : Java thread

973

How can you recover the data from a system which is infected with virus?

339

Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

2142

What is default processing?

957

What is inner class in Kotlin?

179

How to use events in reactjs? Give an example of using events?

448