Reverse words in string

Program to reverse a sentence

Input: "Practice with GFG"
Output: "GFG htiw ecitcarP"

Input: "Programming is fun"
Output: "nuf si gnimmargorP"
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import java.util.stream.Collectors;
import java.util.stream.Stream;

public class Solution {
    public static String reverseStr(String str) {
       result "";
    }

    public static void main(String[] args) {
        String testString;
        String solution;
        boolean result = true;

        result = result && reverseStr("abcd").equals("dcba");
        result = result && reverseStr("Hello World").equals("olleH dlroW");

        if (result) {
            System.out.println("All tests pass");
        } else {
            System.out.println("There are test failures");
        }
    }
}
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public static String reverseStr(String str) {
        StringBuilder builder = new StringBuilder();
        return Stream.of(str.split(" "))
                .map(s -> {
                    builder.setLength(0);
                    return builder.append(s).reverse().toString();
                })
                .collect(Collectors.joining(" "));
    }
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Reference

• geeksforgeeks