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【简答题】
求数列中各个数值的个位数之和: 给定一个String类型的数列,由多个数字组成,每个数字之间用分号(英文)隔开,例如,有数列12;23;105;7,则个位数之和为17 要求输出:“原字符数列为:”+用户输入的字符串 "数列个位数求和结果:"+求和计算结果。 提示:(1)用String类的split方法分割数字字符串,例如对String对象numStr,可以调用方法numStr.split(";"),返回为 String[]类型 (2)用String类的substring方法截取数字字符串的最后一位字符(设变量为num), 方法参数为(字符长度-1),返回为String类型 (3)用Integer类的valueOf方法将分割得到的最后一位字符num转换为int类型:Integer.valueOf( num),Integer类型变量可以与int类型的变量直接相加
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