Question

How to reverse a string using StringBuilder in Java

Answer 1

public class MyClass
{
    public static String reverse(String str) {
        return new StringBuilder(str).reverse().toString();
    }
 
    public static void main(String[] args)
    {
        String str = "java9";
 
        str = reverse(str);
 
        System.out.println(str);
    }
}




/*
run:

9avaj

*/

 

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