first commit

J07021 - CHUẨN HÓA XÂU HỌ TÊN TRONG FILE.java

@@ -0,0 +1,28 @@
+import java.util.Scanner;
+import java.io.File;
+import java.io.IOException;
+public class Main{
+    static char up(char x){
+        if('a'<=x && x<='z') return (char)((int)x-32);
+        return x;
+    }
+    static String re(String name){
+        String[] a = name.split("[' ']+");
+        String r = "";
+        for(int i=0; i<a.length; i++){
+            if(a[i].length() == 0) continue;
+            String s = Character.toString(up(a[i].charAt(0))) + a[i].substring(1);
+            r += s + " ";
+        }
+        return r;
+    }
+    public static void main(String[] args) throws IOException {
+        Scanner sc = new Scanner(new File("DATA.in"));
+        while(sc.hasNextLine()){
+            String name = sc.nextLine();
+            if(name == "") continue;
+            if(name.equals("END")) break;
+            System.out.println(re(name.toLowerCase()));
+        }
+    }
+}