Program:-
https://drive.google.com/file/d/1bDNag0nqLLoBI-hLQUiMAbAem5c7Fv4j/view?usp=drivesdk
public class StringMethods {
public static void main(String[] args) {
String name = "Harry";
//1.name.length();
int length = name.length();
System.out.println("1.The length of String is :"+length);
//2.name.toLowerCase();
String lowercase = name.toLowerCase();
System.out.println("2.The Harry in lowercase is :"+lowercase);
//3.name.toLowerCase();
String uppercase = name.toUpperCase();
System.out.println("3.The Harry in uppercase is:"+uppercase);
//4.name.trim();
String nontrimmedstring = " Harry ";
System.out.println("4.The non trimmed string is :"+ nontrimmedstring);
String trimmedstring = nontrimmedstring.trim();
System.out.println("The trimmed string is : "+trimmedstring);
//5.name.substring(int Start)
System.out.println("5.The substring from index 1 in a given string Harry is : "+name.substring(1));
//6.name.subatring(int start, int end)
System.out.println("6.The substring form index 1 to 4 in a given string Harry is : "+ name.substring(1,5));
//7.name.replace(oldChar:'r', newChar:'p');
System.out.println("7. If we replace the\'r\' from the string Harry by \'p\' then resultant string is :"+name.replace('r', 'p'));
//8.name.startWith("Ha");
System.out.println("8.Is that the given string starts with \"Ha\" :"+name.startsWith("Ha"));
//9.name.endsWith();
System.out.println("9.Is that the given string ends with \"ry\": "+name.endsWith("ry"));
//10.name.charAt(2);
System.out.println("10.The character at the index number 2 is :"+ name.charAt(2));
System.out.println("The character at the index number 0 is :"+name.charAt(0));
//11.name.indexOf(string);
String modifiedName = "Harryrry";
System.out.println("11.The index number of \'rry\' is :"+modifiedName.indexOf("rry"));
//12.name.indexOf("string",3);
System.out.println("12.The index number of \'rry\' after index 4 is :"+modifiedName.indexOf("rry",4));
//otherwise
System.out.println("The index number of \'rry5676\'' is:"+ modifiedName.indexOf("rry5676"));
//13.name.lastIndexOf("rry");
System.out.println("13.The index number of \'rry\' form the last is :"+modifiedName.lastIndexOf("rry"));
//14.name.lastIndexOf("rry",2)
System.out.println("14.The index number of \'rry\' form the last when string is limited to index number 4 is :"+modifiedName.lastIndexOf("rry",4));
//15.name.equals("Harry");
System.out.println("15.Is that the given string is equal to string \'Harry\' :"+name.equals("Harry"));
//16.name.equalsIngnoreCase("harry");
System.out.println("16.Is that the given string is equal to string \'harRy\' ignore the letter is capital or not :"+ name.equalsIgnoreCase("harRy"));
}
}

