badoperatorexception.java

简单的计算器 JAVA 代码 命令行下运行

/*BadOperatorException.java*/
package koala;
public class BadOperatorException extends Exception  //运算符输入异常
{
	private String message;
	public BadOperatorException(String msg)
	{
		this.message=msg;
	}
	public String toString()
	{
		return message;
	}
}