Question

How to reverse a string in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        String s = "java programming";
         
        s = new StringBuffer(s).reverse().toString();
         
        System.out.println(s);
    }
}
 
 
 
/*
run:
 
gnimmargorp avaj
 
*/

 

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Answer 2

public class MyClass {
    public static void main(String args[]) {
        String s = "java programming";
         
        s = new StringBuilder(s).reverse().toString();
         
        System.out.println(s);
    }
}
 
 
 
/*
run:
 
gnimmargorp avaj
 
*/

 

70+ SQL courses for beginners and professionals

Answer 3

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

    
     
/*
run:
    
gnimmargorp avaj
    
*/

 

70+ SQL courses for beginners and professionals

Answer 4

public class MyClass {
    public static String reverseString(String s) {
        if (s.isEmpty()) {
		    return s;
		}
		
		return reverseString(s.substring(1)) + s.charAt(0);
    }
    public static void main(String args[]) {
        String s = "java programming";
          
        s = reverseString(s);
          
        System.out.println(s);
    }
}

    
     
/*
run:
    
gnimmargorp avaj
    
*/

 

70+ SQL courses for beginners and professionals