String Methods

import java.lang.String.*;

class Strings

{

public static void main(String[] args)

{

String str=new String();

str="hello";

String str2=new String(" am ");

String str3="san";

System.out.println(str+str2+str3);//+ IS USED TO CONCAT THE STRINGS

String s=str.concat(str2); //concat tne strings

System.out.println(s.concat(str3));

int n=str3.length(); //returns the length of given string

System.out.println("length of san is :"+n);

System.out.println("Trim of :"+str3.trim());//deletes leading and tailing string

char ch=str3.charAt(2); //returns char of given positon

System.out.println("char at postion 2 is :"+ch);

int k=str.compareTo("helloo"); //compares two given strings

System.out.println("compatrion of two strings :"+k);

boolean t=str.startsWith("h");//returns true if stars with that

System.out.println("hello is stars with h: "+t);

boolean t1=str.endsWith("h");//returns true if ends with that

System.out.println("hello is ends with h: "+t1);

String sss="hello how is u r hekth is n";

int kk=sss.indexOf("is"); //give the position of first str in given str

System.out.println("give postion of first is in string : "+kk);

int kk1=sss.lastIndexOf("is"); //give the position of last str in given str

System.out.println("give postion of last is in string : "+kk1);

System.out.println(sss);

String sk=sss.replace('h','M');

System.out.println("replace of H with M: "+sk);

System.out.println("to lower string:---"+sk.toLowerCase());

System.out.println("to upper case string:---"+sk.toUpperCase());

// System.out.println("Sub string:------"+sk.subString());

}

}