Reverse a string in java
// reverse a string using reverse() method of StringBuilder class class ReverseUsingReverseMethod { public static void main(String[] args) { String str = "Hello world Java"; StringBuilder sb = new StringBuilder(); // append string to StringBuilder sb.append(str); sb = sb.reverse(); // printing reversed String System.out.println(sb); } }
Reverse a string in java
// reverse a string using character array class ReverseUsingCharacterArray { public static void main(String[] args) { String str = "HelloWorldJava"; char[] ch = str.toCharArray(); for(int a = ch.length - 1; a >= 0; a--) System.out.print(ch[a]); } }
Reverse a string in java
// reverse a string using ByteArray class ReverseStringByteArray { public static void main(String[] args) { String input = "HelloWorld"; // getBytes() method to convert string into bytes[]. byte[] strByteArray = input.getBytes(); byte[] output = new byte[strByteArray.length]; // store output in reverse order for(int a = 0; a < strByteArray.length; a++) output[a] = strByteArray[strByteArray.length - a - 1]; System.out.println(new String(output)); } }
reverse a string in java
public class Main { public static void main(String[] args) { // Write a Java program to reverse a string. Scanner input = new Scanner(System.in); System.out.println("Enter the String:"); char[] letters = input.nextLine().toCharArray(); System.out.println(" Reverse String"); for(int i = letters.length -1; i >= 0; i--){ System.out.print(letters[i]); } } }
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