Core API
How do I convert collection to ArrayList?
package org.kodejava.util; import java.util.ArrayList; import java.util.LinkedList; public class CollectionToArrayList { public static void main(String[] args) { // We create LinkedList collection type at put some values // in it. Here we put A, B, C and D letter into it. LinkedList<String> linkedList = new LinkedList<>(); linkedList.push("A"); linkedList.push("B"); linkedList.push("C"); linkedList.push("D"); // Let say you want to […]
Artikel oleh Wayan · Sumber: Kode Java ↗
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package org.kodejava.util;
import java.util.ArrayList;
import java.util.LinkedList;
public class CollectionToArrayList {
public static void main(String[] args) {
// We create LinkedList collection type at put some values
// in it. Here we put A, B, C and D letter into it.
LinkedList<String> linkedList = new LinkedList<>();
linkedList.push("A");
linkedList.push("B");
linkedList.push("C");
linkedList.push("D");
// Let say you want to convert it to other type of collection,
// for instance here we convert it into ArrayList. To do it
// we can pass the collection created above as a parameter to
// ArrayList constructor.
ArrayList<String> arrayList = new ArrayList<>(linkedList);
// Now we have converted the collection into ArrayList and
// printed what is inside.
for (String s : arrayList) {
System.out.println("s = " + s);
}
}
}
