/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 vote128 views1 answer
Convert Octal to Binary in java
Java
0 vote116 views1 answer
Get all colors in string spigot
Java
8 votes105 views4 answers
What is method in java
Java
0 vote119 views1 answer
Javac celar
Java
0 vote127 views3 answers
Resttemplate get rest api call in java
Java
0 vote114 views1 answer
Java heckj object lock
Java
1 vote119 views1 answer
Entre clavier java
Java
5 votes112 views2 answers
Gradle springboot run
Java
1 vote115 views3 answers
Get app version android
Java
0 vote120 views1 answer
How to get a context in a recycler view adapter
Java