For each of the following programs that involve casting and autoboxing, predict

Question

For each of the following programs that involve casting and autoboxing, predict the result of compliing and runing the program. potential answers include" there is a syntax error because... " "there is a run tim error because ... " and " the output of the program would be ..."

a, public class test 3 { public static void main ( string[] args ) {

string s1;

int i1; object o1; i1 =35; o1 = i1; s1 = (String) o1;

System.out.println(s1.toLowerCase());

b, public class test 4 {

public static void main ( String [ ] args)

{ integer I1;

int i1;

Object 01;

i1 = 35;

o1=i1

I1 = (Integer) o1:

System.out.printLn(I1);

Explanation / Answer

Answers:)

a. RunTimeException because class object not defined and syntax error because string is a key word in java and has to be written as "String" and not "string".

b. Syntax error and RunTimeException because Object class not defined, ";" after o1 = i1 and ";" after l1=(Integer) o1 not ":" and integer is a keyword in java and has to be written as "Integer" not "integer".

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