buy and sell once mysolution

src/main/java/Solution.java

@@ -11,10 +11,22 @@ class Solution {
 	public static void main( String[] args ) {
 		Scanner in = new Scanner( System.in );
 		// read values with in.next...() methods
+		String[] stockPrices =in.nextLine().split(" ");
 
 		// code your solution here
+		List<Integer> allProfits = new ArrayList();
+		int currentMin =  Integer.parseInt(stockPrices[0]);
 
+		for (int i= 0; i< stockPrices.length-1 ; i++) {
+			if(currentMin < Integer.parseInt(stockPrices[i+1])) {
+				allProfits.add(Integer.parseInt(stockPrices[i+1]) - currentMin);
+			} else {
+				currentMin = Integer.parseInt(stockPrices[i+1]);
+			}
+		}
+
+		int value = allProfits.stream().mapToInt(m -> m).max().orElse(0);
 		// Write result with System.out.println()
-		System.out.println( "value" );
+		System.out.println( value);
 	}
 }