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View Compilation Error

0_0_19660988_27842\Main.java:4: 错误: 类Math是公共的, 应在名为 Math.java 的文件中声明
public class Math {
       ^
0_0_19660988_27842\Main.java:11: 错误: 找不到符号
		        double x=(int)Math.sqrt(n*n-4*m);
		                          ^
  符号:   方法 sqrt(int)
  位置: 类 Math
2 个错误


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