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Copy pathJavaVsPcc.java
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68 lines (58 loc) · 2.31 KB
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package java_vs_pcc;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;
public class JavaVsPcc {
private static boolean isUpperCase(char symbol) {
return String.valueOf(symbol).equals(String.valueOf(symbol).toUpperCase());
}
public static void main(String[] args) throws IOException {
String command = new Scanner(new FileReader("input.txt")).nextLine();
StringBuilder newCommand = new StringBuilder();
if (command.contains("_") && command.charAt(0) != '_' && command.charAt(command.length()-1) != '_' && !command.contains("__") ) {
String[] tmp = command.split("_");
for (String path: tmp) {
if (path.length() == 0) {
break;
}
String upperCase = String.valueOf(path.charAt(0)).toUpperCase();
if (upperCase.equals(String.valueOf(path.charAt(0))) || !path.toLowerCase().equals(path)) {
newCommand = new StringBuilder();
newCommand.append("Error!");
break;
}
if (newCommand.length() == 0) {
newCommand.append(path);
} else {
newCommand.append(upperCase);
if (path.length() >= 2) {
newCommand.append(path.substring(1));
}
}
}
} else if (!command.contains("_")) {
char[] tmp = command.toCharArray();
for (char symbol: tmp) {
if (newCommand.length() == 0 && isUpperCase(symbol)) {
newCommand.append("Error!");
break;
}
if (newCommand.length() == 0) {
newCommand.append(symbol);
} else if (isUpperCase(symbol)) {
newCommand.append("_");
newCommand.append(String.valueOf(symbol).toLowerCase());
} else {
newCommand.append(symbol);
}
}
}
if (newCommand.length() == 0) {
newCommand.append("Error!");
}
PrintWriter out = new PrintWriter(System.out);
out.print(newCommand);
out.flush();
}
}