require "test/unit"
class BasicNumber
def initialize(number)
@number = number
end
def add(x)
@number + x
end
def multiply(x)
@number * x
end
end
class TC_MyTest < Test::Unit::TestC
代码：
public static void main(String[] args) {
List list = new ArrayList();
list.addAll(Arrays.asList(1, 4, 2, 5));
List sub = list.subList(1, 3);
System.out.println("s
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