Replace Character in a String in Java without using replace() method
To replace a character in a String, without using the replace() method, try the below logic.
Let’s say the following is our string.
String str = "The Haunting of Hill House!";
To replace character at a position with another character, use the substring() method login. Here, we are replacing 7th position with character ‘p’
int pos = 7;
char rep = 'p';
String res = str.substring(0, pos) + rep + str.substring(pos + 1);
The following is the complete example wherein a character at position 7 is replaced.
Example
Live Demo
public class Demo {
public static void main(String[] args) {
String str = "The Haunting of Hill House!";
System.out.println("String: "+str);
// replacing character at position 7
int pos = 7;
char rep = 'p';
String res = str.substring(0, pos) + rep + str.substring(pos + 1);
System.out.println("String after replacing a character: "+res);
}
}Output
String: The Haunting of Hill House!
String after replacing a character: The Haupting of Hill House!
Published on 12-Dec-2018 11:58:55
