reverse string java
String string="whatever";
String reverse = new StringBuffer(string).reverse().toString();
System.out.println(reverse);reverse string java
String string="whatever";
String reverse = new StringBuffer(string).reverse().toString();
System.out.println(reverse);java reverse a string
// Library approach
public static String solution(String str) {
// StringBuilder is not thread-safe, use StringBuffer
return new StringBuffer(str).reverse().toString();
}
// DIY approach
public static String solution(String str) {
char[] chars = str.toCharArray();
for(int i = 0, j = str.length() - 1; i < j; i++, j--) {
char ch = chars[i];
chars[i] = chars[j];
chars[j] = ch;
}
return new String(chars);
}java string reverse
String str = "Reverse this strings";
//for loop
for (int i = str.length() - 1; i >= 0; i--) {
System.out.print(str.charAt(i));
}
// StringBuffer for multi thread
StringBuffer sb = new StringBuffer();
sb.append(str);
System.out.print(sb.reverse().toString());
// StringBuffer for single thread
StringBuilder sb = new StringBuilder();
sb.append(str);
System.out.print(sb.reverse().toString());reverse a string in java
public class StringReverseExample{
public static void main(String[] args) {
String string = "abcdef";
String reverse = new StringBuffer(string).reverse().toString();
System.out.println("\nString before reverse: "+string);
System.out.println("String after reverse: "+reverse);
}
}Java reverse string array
// reverse string array in java using collections
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class ReverseStringArrayUsingCollections
{
public static void main(String[] args)
{
// creating list of strings
List<String> li = new ArrayList<String>();
li.add("java");
li.add("core");
li.add("world");
li.add("hello");
System.out.println("Given list: " + li);
Collections.reverse(li);
System.out.println("After using collections: " + li);
}
}reverse string array java
//java program to reverse array using for loop
public class ReverseArrayDemo
{
public static void main(String[] args)
{
int[] arrNumbers = new int[]{2, 4, 6, 8, 10};
System.out.println("Given array: ");
for(int a = 0; a < arrNumbers.length; a++)
{
System.out.print(arrNumbers[a] + " ");
}
System.out.println("Reverse array: ");
// looping array in reverse order
for(int a = arrNumbers.length - 1; a >= 0; a--)
{
System.out.print(arrNumbers[a] + " ");
}
}
}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
