source file name:  stringdemo2.java

class stringdemo2

{

public static void main(String as[])

{

System.out.println("string demo program");

System.out.println("upper case conversion: "+"One".toUpperCase());

System.out.println("lower case conversion: "+"Two".toLowerCase());


String str1="well come";

String str2="hello";

System.out.println("replacing string "+str1.replace('e','a'));

System.out.println("length of string before "+str2.length());

System.out.println("replacing string "+str2.trim());

System.out.println("length of string after "+str2.length());

System.out.println("equal strings: "+"Wel Come".equals("wel come"));

System.out.println("equal strings: "+"Wel Come".equalsIgnoreCase("wel come"));

System.out.println("char at int value "+" dbj college".charAt(3));

String str="dbj college";

System.out.println("index no at char value: "+str.indexOf('j'));

System.out.println("concatenation of 2 strings "+"suman".concat("patil"));

System.out.println("concatenation of 2 strings "+"dbj college".substring(str.indexOf('c')));

System.out.println("concatenation of 2 strings "+"dbj college".substring(4,7));

System.out.println("comparasion: "+"aba".compareTo("baba"));

System.out.println("comparison: "+"shubham".compareTo("kavita"));

System.out.println("comparison: "+"aba".compareToIgnoreCase("Aba"));

System.out.println("value= "+String.valueOf(10));

stringdemo2 strdemo1=new stringdemo2();

System.out.println("value= "+String.valueOf(strdemo1));

String p="101";

System.out.println("value= "+p.toString());

StringBuffer sb1=new StringBuffer(str);

StringBuffer sb2=new StringBuffer("DBJ COLLEGE");

System.out.println("capacity string "+sb1.capacity());

System.out.println("length string "+sb1.length());

System.out.println("append string "+sb1.append(" chiplun"));

System.out.println("delete string "+sb1.delete(4,11));

System.out.println("delete string "+sb1.insert(4,"family"));

System.out.println("reverse string "+sb2.reverse());

}

}

output:


D:\JavaPrograms\Misc>java stringdemo2

string demo program

upper case conversion: ONE

lower case conversion: two

replacing string wall coma

length of string before 5

replacing string hello

length of string after 5

equal strings: false

equal strings: true

char at int value j

index no at char value: 2

concatenation of 2 strings sumanpatil

concatenation of 2 strings college

concatenation of 2 strings col

comparasion: -1

comparison: 8

comparison: 0

value= 10

value= stringdemo2@f9f9d8

value= 101

capacity string 27

length string 11

append string dbj college chiplun

delete string dbj  chiplun

delete string dbj family chiplun

reverse string EGELLOC JBD