1.

What do you understand by the ... in the below method parameters?

Answer»
public void someMethod(String... info){
// method body
}

The 3 dots feature was started in Java 5 and the feature is known as varargs (variable arguments). This simply means that the method can receive one or more/multiple String arguments as shown below:


  • someMethod("Java", "Interview");

  • someMethod("Java", "Interview", "Questions");

  • someMethod(new String[]{"Java", "Interview", "Questions"});

These received arguments can be used as an array and can be accessed by iterating through loops as shown below:

public void someMethod(String... info){
for(String someInfo : info){
// any operation
}
// The info can be accessed using index based loops too
for( int i = 0; i < info.length; i++){
String s = info[i];
//some operation
}
}


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