s.substring(int initialindex), which returns a substring of the string s FROM the GIVEN INDEX TO THE END of the string

s.substring(int startindex, int endindex), which returns the substring 's' of the string BETWEEN the given INDICES
- from startindex
- UP TO BUT NOT INCLUDING endindex





Examples on using substrings:
String str = "abcdefghijk";

// five first characters
System.out.println(str.substring(0,5));

// Characters from third character onward
System.out.println(str.substring(2));

// Characters 3-6
System.out.println(str.substring(3, 7));
 

Program outputs:
abcde
cdefghijk
defg