1. What are all the java shift operators?

Ans:

Shift Operators are:

• l << Un-signed left shift
• l >> Signed right shift
• l >>> Un-signed right shift

When you are doing left-shift using the operator << and un-signed right-shift using operator >>>,these operators insert zeros in the new position.
The >> operator puts either zero or one depend upon the MSB (Most Significant Bit) before shifting. If MSB is one before shifting then it puts one in the new position.

2. What are all the Java primitive data conversion rules?

Ans:

l A boolean type may not be converted to non-boolean type.

That is you cannot assign a boolean value to non-boolean type and vice versa.

l A non-boolean type may be converted to non-boolean type provided that the conversion is
widening.

3. what are all Java possible data type assignment operations?

Ans:

• l A byte value can be assigned to short, int, long, float or double.
• l A short value can be assigned to int, long, float, double.
• l A char value can be assigned to int, long, float, double.
• l A int value can be assigned to long, float, double.
• l A long value can be assigned to float, double.
• l A float value can be assigned to double.

4. Explain About the instance of operator?

Ans:

This is used for Runtime Type Identification ( RTTI). It returns boolean. This can be used to test against class, interface, and an array.
The rules that returns true:

• l If the left - hand side argument is the same as or subclass of the right - hand side operand.
• l If applied to interface then the left-hand side operand should implement the right-hand side

• interface.