System.out.println("x=" +x);

This line of code is invalid Java syntax. It appears to be missing a semicolon and the concatenation operator (+) to join the string "x=" with the value of the variable x.

A corrected version of this code would be:

System.out.println("x=" + x + ";");

This would print the value of the variable x with the string "x=" preceding it, followed by a semicolon.