String s = "new String"; String replaced = s.replace("new","Test"); ^ ^ old new char
public static void main(String args[]){ String s1="my name is khan my name is java"; String replaceString=s1.replace("is","was");//replaces all occurrences of "is" to "was" System.out.println(replaceString); }}
String str = in.nextLine(); //Original String char cr = in.next().charAt(0); // character to replace int index = in.nextInt(); // Index where replaced str = str.substring(0, index) + cr + str.substring(index + 1);// modified string
String str = ".............................."; int index = 5; char ch = '|'; StringBuilder string = new StringBuilder(str); string.setCharAt(index, ch); System.out.println(string);