Japanese stocks advanced, supported by gains in machinery and electronics shares amid a weaker yen. The Nikkei Index climbed 0.3% to 50,734.83 points. Kawasaki Heavy Industries rose 3.4%, while Tokyo Electron gained 2.1%. The U.S. dollar traded at 155.83 yen, higher than 155.26 yen at Monday's close in Tokyo. Investors are closely monitoring economic data ahead of the Bank of Japan's policy meeting next week.