Java是大小写敏感的,因此请确保你导入的类是java.math.RoundingMode而不是其他变体(如roundingmode、RoundingMode但大小写不正确等)。正确的导入语句应该是: java import java.math.RoundingMode; 确认项目中是否已经正确导入了java.math包: 通常,java.math.RoundingMode是
importjava.math.BigDecimal; importjava.math.RoundingMode; importjava.util.ArrayList; importjava.util.Scanner; publicclassMain{ publicstaticArrayList<Double>xn=newArrayList<>(); publicstaticArrayList<Double>absXn=newArrayList<>(); publicstaticArrayList<BigDecimal>absXn1=newArrayList<>(); ...
import java.math.BigDecimal; import java.math.RoundingMode; public class Main { public static double[] xn = {0.135, 0.876, 1.336, 2.301, 2.851}; public static double[] yn = {2.382,-0.212,-1.305,-3.184,-4.365}; public static double x = 0; public static double[] znam = new double[5...
引入java类，这样你就可以使用这些类了。
importjava.math.RoundingMode; importjava.util.Scanner; publicclassMain{ publicstaticvoidmain(String[]args){ double[][]xs=newdouble[][]{ newdouble[]{5.452,0.401,0.758,0.123,-0.886}, newdouble[]{0.785,2.654,0.687,0.203,-0.356}, newdouble[]{0.402,0.244,4.456,0.552,-0.342}, ...