if ! command -v javac >/dev/null 2>&1; then
    echo "Error: javac is not installed."
    exit 1
fi

if ! command -v java >/dev/null 2>&1; then
    echo "Error: java is not installed."
    exit 1
fi

if ! javac -d build Main.java; then
    echo "Error: javac failed to compile Main.java."
    exit 1
fi

java -cp build Main