Question

Java 非法的类型开始 和 需要标识符

N_arithmetic_progression.java:10: 错误: 需要<标识符>
System.out.println("The first term:");
^
N_arithmetic_progression.java:10: 错误: 非法的类型开始
System.out.println("The first term:");
^
N_arithmetic_progression.java:13: 错误: 需要<标识符>
System.out.println("Equal difference:");
^
N_arithmetic_progression.java:13: 错误: 非法的类型开始
System.out.println("Equal difference:");
^
N_arithmetic_progression.java:16: 错误: 需要<标识符>
System.out.println("Nth term:");
^
N_arithmetic_progression.java:16: 错误: 非法的类型开始
System.out.println("Nth term:");

Answer 1

我猜是不是你没有main方法，这些代码需要放在public static void main（strings []）

Answer 2

按照提示修改就可以了