replace character in string java
String str = "..............................";
int index = 5;
char ch = '|';
StringBuilder string = new StringBuilder(str);
string.setCharAt(index, ch);
System.out.println(string);how to count an replace substring string in java
String str = "helloslkhellodjladfjhello";
String findStr = "hello";
int lastIndex = 0;
int count = 0;
while(lastIndex != -1){
lastIndex = str.indexOf(findStr,lastIndex);
if(lastIndex != -1){
count ++;
lastIndex += findStr.length();
}
}
System.out.println(count);Copyright © 2021 Codeinu
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