The following code is causing an exception during the runtime. class test { public static void main(String[] args) { Object o = "Hello"; Object s = new Random(); m(o); m(s); } public static void m(Object o) { String s = (String)o; System.out.println(s.length()); }
The following code is causing an exception during the runtime. class test { public static void main(String[] args) { Object o = "Hello"; Object s = new Random(); m(o); m(s); } public static void m(Object o) { String s = (String)o; System.out.println(s.length()); }
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
The following code is causing an exception during the runtime.
class test
{
public static void main(String[] args)
{
Object o = "Hello";
Object s = new Random();
m(o);
m(s);
}
public static void m(Object o)
{
String s = (String)o;
System.out.println(s.length());
}
}
- Exception can be prevented by adding an if statement and type casting in the method m
- Exception can be handled by adding try-catch in the main method
- answers A or B both works
- Non of the answers
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