JAVA笔记-JAVA中的Exception自定义异常

输入两个正整数并计算它们之和，当输入任意的一个数超出（0-10）范围时，抛出自己自定义的异常（NumberRangeException）,异常的信息显示”数字不在指定范围。“

 

package MyException;

class NumberRangeException extends Exception {
	
	public NumberRangeException() {
		super();
	}
	
	public NumberRangeException(String msg) {
		super(msg);
	}
	
}

 

package MyException;

public class ExceptionTest {
	
	private static int TOTAL;
	
	public static void add(int x, int y) throws NumberRangeException {
		
		if( x > 10 || x < 0 ) {
			
			throw new NumberRangeException("数字不在指定范围");
		} else if( y > 10 || y <0 ) { 
			
			throw new NumberRangeException("数字不在指定范围");
		} else {
			TOTAL = x + y;
			System.out.println(TOTAL);
		}
	}
	
	public static void main(String[] args) {
		
		try {
			add(7,9);
		} catch (NumberRangeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}