Answers for "string get index of char java"

character at index of string java

String str = "Grepper";
char ch = str.charAt(0);
//ch is assigned the value of G

how to find the index of a letter in a string java

String myStr = "Hello planet earth, you are a great planet.";
System.out.println(myStr.indexOf("planet"));

java indexof not found

The java string indexOf() method returns index of given character value or substring. If it is not found, it returns -1. The index counter starts from zero.