Tokyo shares

 Tokyo shares ended sharply higher Tuesday with its benchmark Nikkei stocks index hit the 17,000 threshold for the first time in seven years, weighed up by a weaker yen that retreated to the 115 yen line against the U.S. dollar.
The 225-issue Nikkei Stock Average surged 343.58 points, or 2. 05 percent, higher from Monday to end at 17,124.11, its highest finish since Oct. 16, 2007
The broader Topix index of all First Section issues on the Tokyo Stock Exchange was up 15.10 points, or 1.11 percent, at 1, 375.21.
Gainers were led by precision instruments, real estate and retail issues.
The turnover was about 2,547.4 billion yen (about 22.10 billion U.S. dollars).