Question

Where is the error in this code sequence?

Answer 1

Answer:

There is an error in "String s=s1-s2 ";

Explanation:

In java programming, we can subtract subtract two strings variable with "-" operator.Java programming does not  support an overload of the '-' operator.In java, we can use only "+" operator to append two strings variable.There is no such method to subtract strings in java.Therefore in the given code String s=s1-s2 will give an "bad operand type" error because we can not subtract one string variable from the second string variable.