Answers for "java list insertion"

java insert into arraylist

ArrayList<Integer> str=new ArrayList<Integer>();
str.add(0);
str.add(1);
 // Result = [0, 1]
    
str.add(1, 11);
 // Result = [0, 11, 1]

insert data into list java

List<String> list = new ArrayList<String>();
list.add(s1);
list.add(s3);
list.add(1, s2);
System.out.println(list);