String Programs

1. string Character Reverse

public class stringCharacterReverseTest {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

String s="Essilor is";
String revString="";
for(int i=s.length()-1;i<=0;i--){

revString=revString+s.charAt(i);

}
System.out.println(revString);


}


}

2. String Word Reverse

public class StringWordReverse {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

String s="Essilor is";

String[] spilitString=s.split(" ");

String revStr="";

for(String s1:spilitString){

revStr=s1+" "+revStr;

}

System.out.println(" "+revStr);

}

}

3. String Char Count

public class StringCharCount {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

String s="radar";

char[] spilitString=s.toCharArray();

char c;

HashMap hm=new HashMap();

for(Character s1:spilitString){

c=s1;

hm.put(s1, hm.get(c)==null?1:hm.get(c)+1);

}

System.out.println(hm.toString());

}

}

4. String Word Count

public class StringWordCount {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

String s="Essilor is a Essilor";

String[] spilitStr=s.split(" ");

String countStr="";

HashMap hm=new HashMap();

for(String s1:spilitStr){

countStr=s1;

hm.put(s1, hm.get(countStr)==null?1:hm.get(countStr)+1);

}

System.out.println(hm.toString());

}

}