Technology Questions

Answer - echo is the most primitive of them, and just outputs the contents following the construct to the screen. print is also a construct (so parentheses are optional when calling it), but it returns TRUE on successful output and FALSE if it was unable to print out the string. However, you can pass multiple parameters to echo, like:

and it will output the string "Welcome to TechInterviews!" print does not take multiple parameters. It is also generally argued that echo is faster, but usually the speed advantage is negligible, and might not be there for future versions of PHP. printf is a function, not a construct, and allows such advantages as formatted output, but it’s the slowest way to print out data out of echo, print and printf.

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Recursive query can be create in SQL using stored procedure but you can also use CTE (Common table expression). It might be also worth asking about performance as CTE is not always very fast.

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It is stored in the most significant bit. Bit is ON if -ve, OFF if +ve.

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Managed execution process is a process where CLR executes the managed code. The steps involved in this process are:

1.  Choosing the right compiler


2.  Compiling the code to MSIL. This also generates the required metadata.


3.  Compile the MSIL ode to native machine code.


4. Executing the code with the variety of services available

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TelephonyManager class can be used to get the IMEI number. It provides access to information about the telephony services on the device.

Code

        TelephonyManager mTelephonyMgr = (TelephonyManager)

        getSystemService(Context.TELEPHONY_SERVICE);

        String imei = mTelephonyMgr.getDeviceId();

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Answer Java doesn't support multiple inheritance.

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JDK is Java Development Kit which is for development purpose and it includes execution environment also.

JVM is Java Virtual Machine which is a run time environment for the compiled java class files .Hence you will not be able to compile your source files using a JVM.

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a nonmatching index scan if ACCESSTYPE = 1

 

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