프로그래머스/Sort: 가장 큰 수 (#44)

src/programmers/algorithmKit/sort/PROB02.java

@@ -0,0 +1,22 @@
+package programmers.algorithmKit.sort;
+
+import java.util.*;
+
+public class PROB02 {
+    public String solution(int[] numbers) {
+        String[] strNumbers = new String[numbers.length];
+
+        for (int i = 0; i < numbers.length; i++) {
+            strNumbers[i] = String.valueOf(numbers[i]);
+        }
+
+        Arrays.sort(strNumbers, (o1, o2) -> (o2 + o1).compareTo(o1 + o2));
+
+        // 모든 숫자가 0일 경우 "0"을 반환
+        if (strNumbers[0].equals("0")) {
+            return "0";
+        }
+
+        return String.join("", strNumbers);
+    }
+}