java 从字符串的特定位置获取特定字符

Posted 2021-05-08

//charAt method will pick the specific character of the string of position number of j

for (int j = 0; j < halfString.length(); j += 2) {
    char finalOutPutChar = halfString.charAt(j);
    finalOutPut = finalOutPut + finalOutPutChar;
}