复利计算--单元测试

@Test public void test0() {//测单利终值 double money=1000000.0; int years=30; double r=0.03; double sum; sum = money + money * years * r; Assert.assertEquals(1900000,sum, 1.0); } @Test public void test1(){//测复利终值 double money=1000000.0; int years=30; double r=0.03; double N=1; double sum; for (int i = 1; i <= years; i++) { N = (1 + r) * N; } sum = N * money; Assert.assertEquals(2427262,sum, 1.0); } @Test public void test2(){//测本金 double N = 1, money; double sum=3000000; int years=30; double r=0.03; for (int i = 1; i <= years; i++) { N = (1 + r) * N; } money = sum / N; Assert.assertEquals(1235960,money, 1.0); }

 

请教了一些同学 但还是一知半解

转载于:https://www.cnblogs.com/Benjen/p/5344244.html

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