Reverse a String in Java

This Java program uses the StringBuilder class to reverse a given string.

The original string is initialized as "Tutor Joes Computer Education"., and it is printed using System.out.println(a).
Next, a new StringBuilder object b. is created, and a for loop is used to iterate through the characters of the original string from the end to the beginning (i=a.length()-1;i>=0;i--.).
The charAt(). method is used to get each character at the current index, and it is appended to the new StringBuilder object b. using the append(). method.
Finally, the reversed string is printed using System.out.println(b) .

Source Code

public class Reverse {
    public static void main(String args[])
    {
        //Program to reverse a given string
        StringBuilder a = new StringBuilder("Tutor Joes Computer Education");
        System.out.println(a);
        StringBuilder b=new StringBuilder();
        for(int i=a.length()-1;i>=0;i--)
        {
            b.append(a.charAt(i));
        }
        System.out.println(b);
    }
}

Output

Tutor Joes Computer Education
noitacudE retupmoC seoJ rotuT

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Reverse a String in Java

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