77 lines
2.3 KiB
Java
77 lines
2.3 KiB
Java
import java.util.Scanner;
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import java.util.Arrays;
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class palin_alpha_rev_concat{
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static boolean palindrome(String str)
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{
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String rev=reverse(str);
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return str.contentEquals(rev);
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}
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static String[] alphabetic(String str) {
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char[] arr = str.toCharArray();
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Arrays.sort(arr);
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String sortedStr = new String(arr);
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String[] result = new String[sortedStr.length()];
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for (int i = 0; i < sortedStr.length(); i++) {
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result[i] = String.valueOf(sortedStr.charAt(i));
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}
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return result;
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}
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static String reverse(String str)
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{
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StringBuffer rev=new StringBuffer(str);
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rev.reverse();
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String revstr=rev.toString();
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return revstr;
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}
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static String concatenate(String str)
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{
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String rev=reverse(str);
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return str+rev;
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}
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public static void main(String[] args) {
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Scanner in=new Scanner(System.in);
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System.out.println("Enter the String");
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String str=in.nextLine();
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char contin='y';
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while(contin=='y'){
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System.out.println("What do you want to do? 1. Check for Palindrome; 2. Write in an alphabetic order; 3. Reverse the String; 4. Concatenate with reversed");
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int choice=in.nextInt();
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switch(choice)
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{
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case 1:
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{
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System.out.println("String is a palindrome:"+palindrome(str));
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break;
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}
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case 2: {
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String arr[] = alphabetic(str);
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System.out.println("String in alphabetic order:");
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for (int i = 0; i < arr.length; i++) {
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System.out.print(arr[i]);
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}
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System.out.println();
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break;
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}
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case 3:
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{
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System.out.println("Reversed string="+reverse(str));
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break;
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}
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case 4:
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{
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System.out.println("Concatenated String="+concatenate(str));
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break;
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}
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}
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System.out.println("Continue?(y/n)");
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contin=in.next().charAt(0);
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}
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}
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} |