CODEWITHSUNDEEP
javaarraylist
Ganesh NB
Ganesh NB

Reputation: 81

How to convert ArrayList Chararcter elements to Integer

ArrayList<Character> a = new ArrayList<Character>();
a.add('A');
a.add('B');
a.add('C');
ArrayList<Integer> s = (ArrayList<Integer>) a.clone();
System.out.println("Character: " + a + "\n Integer: " + s);

I need the answer as:

Character: [A, B, C]
Integer: [65, 66, 67]

How can I achieve this?

Upvotes: 0

Views: 1241

Answers (3)

Ruchira Gayan Ranaweera
Ruchira Gayan Ranaweera

Reputation: 35577

You can try this way.

List<Character> a=new ArrayList<Character>();
a.add('A');
a.add('B');
a.add('C');

List<Integer> s= new ArrayList<Integer>();
for(Character i:a){
   s.add(Integer.valueOf(i));
}

System.out.println("Character: "+a +"\nInteger: "+s);

Out put:

Character: [A, B, C]
Integer: [65, 66, 67]

Upvotes: 4

darijan
darijan

Reputation: 9795

int charCode = (int) c.charValue();

In your example

List<Integer> result = new ArrayList<Integer>();

for(Character c : a) {
    result.add((int) c.charValue());
}

Upvotes: 1

Till Rohrmann
Till Rohrmann

Reputation: 13346

You simply have to convert it into int.

ArrayList<Integer> s = new ArrayList<Integer>();

for(Character c: a) {
    s.add((int) c)
}

Upvotes: 1

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