如题所述
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é常è°ç¨ä¸ä¸ç¶ç±»çæé æ¹æ³ã
public class MyException extends Exception {
public MyException() { super(); }
public MyException(String msg) { super(msg); }
public MyException(Throwable cause) { super(cause); }
public MyException(String msg, Throwable cause) { super(msg, cause); }
}
public String[] createArray(int length) throws MyException {
if (length < 0) {
throw new MyException("æ°ç»é¿åº¦å°äº0,ä¸åæ³");
}
return new String[length];
}
ä¸é¢è¿ä¸ªä¾å,ä½ ç»§æ¿RuntimeExceptionä¹æ¯æ²¡é®é¢ç.é常继æ¿Exception,èå´æ´å¤§.
é常è°ç¨ä¸ä¸ç¶ç±»çæé æ¹æ³ã
public class MyException extends Exception {
public MyException() { super(); }
public MyException(String msg) { super(msg); }
public MyException(Throwable cause) { super(cause); }
public MyException(String msg, Throwable cause) { super(msg, cause); }
}
public String[] createArray(int length) throws MyException {
if (length < 0) {
throw new MyException("æ°ç»é¿åº¦å°äº0,ä¸åæ³");
}
return new String[length];
}
ä¸é¢è¿ä¸ªä¾å,ä½ ç»§æ¿RuntimeExceptionä¹æ¯æ²¡é®é¢ç.é常继æ¿Exception,èå´æ´å¤§.
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第1个回答 2017-12-03
图片中介绍的是其不同