第一章第六题(数列求和)(Summation of a series)
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1.6(数列求和)编写程序,显示1+2+3+4+5+6+7+8+9的结果。
1.6 (Summation of a series) Write a program that displays the result of 1+2+3+4+5+6+7+8+9. -
参考代码:
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方法一:
package chapter01;public class Code_06 { public static void main(String[] args){ int result=0;for (int i=1;i<=9;i++){ result+=i;}System.out.print(result);} }
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方法二:
public class SummationSequenceNumbersQuestion6 { public static void main(String[] args) { System.out.println("The sum of the sequence : "+ (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9));} }
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结果显示:
45
Process finished with exit code 0