java - 编译错误: '.class' expected

Question

String sAge = scan.nextLine();
Scanner scan = new Scanner( System.in );

System.out.print( "what year were you born? >");
int iAge = scan.nextInt (sAge);
final double Cyear = 2014;
final double LEmax = 77.9;

System.out.println( "\nThe percentage of your life you have lived is " + int LEmax );

当我编译这个时，我收到以下错误:

C:\Users\PracticeMethods.java:54: error: '.class' expected
  System.out.println( "\nThe percentage of your life you have lived is " + int LEmax );
                                                                               ^
C:\Users\PracticeMethods.java:54: error: ';' expected
  System.out.println( "\nThe percentage of your life you have lived is " + int LEmax );

我做错了什么？你能帮我解决这些错误吗？

Answer 1

这只是一个语法错误。试试这个:

System.out.println( "\nThe percentage of your life you have lived is " + LEmax );

请注意，您不必再次说LEmax是一个int，我们仅在声明时指定变量的类型它，而不是我们使用它时。或者也许你打算选角？如果是这样的话，那么你应该这样写，将类型括在 ():

之间

System.out.println( "\nThe percentage of your life you have lived is " + (int) LEmax );