Reverse String

import java.lang.*;
import java.io.*;
import java.util.*;
// Method-1


//Using built in reverse() method of the StringBuilder class
/*class Reverse_String1
{
	public static void main(String[]args)
	{
		String str="Hii I am sohit";
		StringBuilder str1=new StringBuilder();
		str1.append(str);
		str1=str1.reverse();
		System.out.print(str1);
	}
}


//Method-2


//Converting String to character array

class Reverse_String1{
	public static void main(String[]args)
	{
		String str="Autonomy";
		char[] str1=str.toCharArray();
		for(int i=str1.length-1;i>=0;i--)
		{
			System.out.print(str1[i]);
		}
	}
}

//Method-3

//Using ArrayList object
class Reverse_String1
{
	public static void main(String[]args)
	{
		String str="Mohit is a good boy";
		char [] str1=str.toCharArray();
		List<Character> arrlist =new ArrayList<>();
		for(char c:str1)
		{
			arrlist.add(c);
		}
		Collections.reverse(arrlist);
		ListIterator li=arrlist.listIterator();
		while(li.hasNext())
		{
			System.out.print(li.next());
		}
	}
}

//Method-4


//Java program to Reverse a String using swapping

class Reverse_String1
{
	public static void main(String[]args)
	{
		String str="stunning looks";
		char [] str1= str.toCharArray();
		int left,right=0;
		right=str1.length-1;
		for(left=0;left<right;left++,right--)
		{
			char temp=str1[left];
			str1[left]=str1[right];
			str1[right]=temp;
		}
		for(char c:str1){
			System.out.print(c);
		}
		System.out.print("");
	}
}
*/
//Method-5

// Java program to demonstrate conversion from 
// String to StringBuffer and reverse of string

class Reverse_String1
{
	public static void main(String[]args)
	{
		String str="sohit";
		StringBuffer sb=new StringBuffer(str);
		sb.reverse();
		System.out.print(sb);
	}
}