public class Test {
public static void main(String[] args) {
String ta = "A ";
System.out.println(ta);
ta = ta.concat("B ");
System.out.println(ta);
String tb = "C ";
ta = ta.concat(tb);
System.out.println(ta);
ta.replace("B" ,"C");
System.out.println(ta);
ta = ta.concat("D");
System.out.println(ta);
}
try this if wanna understand more on this
public class Test {
public static void main(String[] args) {
String ta = "A ";
System.out.println(ta);
ta = ta.concat("B ");
System.out.println(ta);
String tb = "C ";
ta = ta.concat(tb);
System.out.println(ta);
ta.replace("B" ,"C");
System.out.println(ta);
ta = ta.concat("D");
System.out.println(ta);
}
try this if wanna understand more on this
if my understanding is correct, ta.replace is not assigning it back to ta. Strings are immutable, meaning they cannot be changed like that. you need the line to say ta=ta.replace. Anyone can correct if wrong. God bless.
Correct, Answer is A.
To test:
public static void main(String[] args) {
String ta = "A ";
ta = ta.concat("B ");
String tb = "C ";
ta = ta.concat(tb);
ta.replace("B" ,"C");
ta = ta.concat("D");
System.out.println(ta);
}
upvoted 2 times
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