Constants in Java are: Words that are reserved for use by the Java language Symbolic names made up by the programmer that refer to some memory location Operators that perform some function on one or...

Extracted text: Constants in Java are: Words that are reserved for use by the Java language Symbolic names made up by the programmer that refer to some memory location Operators that perform some function on one or more operands Symbolic names made up by the programmer to refer to a location in memory and which, once created, contain values which cannot be changed O000


Extracted text: Why does the following code fail to compile? String instructor = "Chris jones"; instructor.charAt(6) = 'J'; It should be instructor[6] = J'; You can't modify individual characters in a String. You can't read string elements by index. It should be instructor.set(6, 'T);