/Java/Java define a generic class that produces

Java define a generic class that produces

List<String> list1 = new ArrayList<String>(); // java 7 ? List<String> list1 = new ArrayList<>(); 
list1.add("abc");
//list1.add(new Integer(5)); //compiler error

for(String str : list1){
     //no type casting needed, avoids ClassCastException
}

-1

Source: journaldev.com

Java define a generic class that produces

List list = new ArrayList();
list.add("abc");
list.add(new Integer(5)); //OK

for(Object obj : list){
	//type casting leading to ClassCastException at runtime
    String str=(String) obj; 
}

-2

Source: journaldev.com

Similar codes

0 vote314 views1 answer
Java convert to roman numerals
Java
0 vote288 views1 answer
Java stack using linked list
Java
6 votes277 views3 answers
What is a literal in java
Java
0 vote284 views2 answers
How to send gmail using spring boot in java code
Java Spring
-1 vote276 views4 answers
Android date time
Java
30 votes287 views6 answers
Reverse string in java
Java
0 vote285 views1 answer
8233*4
Java
0 vote273 views1 answer
Key listener java
Java
0 vote269 views1 answer
Java new.JFrame();
Java
-2 votes286 views2 answers
Hashset in java
Java