I have read on this site java is call by value then why i am getting such outputs-
import java.util.ArrayList;
public class JavaDemo {
public static void main(String[] args) {
ArrayList<Integer> arrayList = new ArrayList<Integer>();
arrayList.add(1);
arrayList.add(2);
arrayList.add(3);
modify1(arrayList);
System.out.println("After method call=> " + arrayList);
StringBuffer buffer = new StringBuffer("System");
modify2(buffer);
System.out.println("After method call=> " + buffer);
}
static void modify1(ArrayList al) {
al.add(4);
al.add(5);
}
static void modify2(StringBuffer buffer) {
buffer.append("MODIFIED..");
}
}
OUTPUT---
After method call=> [1, 2, 3, 4, 5]
After method call=> SystemMODIFIED..
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