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2.throwableåExceptionçåºå«(详ç»ä¸ç¹)
3.exception和error区别
4.javaä¸ å¼å¸¸ç±»Exception(String message,码解 Throwable cause)
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public static void main(String[] args) {
try (BufferedReader br = new BufferedReader(new FileReader("a"));
BufferedWriter writer = new BufferedWriter(new FileWriter("a"))) {
// Try-with-resources
} catch (IOException e) { // Multiple catch
// Handle it
}
}
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public static void main(String[] args) { try {
BufferedReader br = new BufferedReader(new FileReader("a"));
Throwable var2 = null; try {
BufferedWriter writer = new BufferedWriter(new FileWriter("a"));
Object var4 = null; if (writer != null) { if (var4 != null) { try {
writer.close();
} catch (Throwable var) {
((Throwable)var4).addSuppressed(var);
}
} else {
writer.close();
}
}
} catch (Throwable var) {
var2 = var; throw var;
} finally { if (br != null) { if (var2 != null) { try {
br.close();
} catch (Throwable var) {
var2.addSuppressed(var);
}
} else {
br.close();
}
}
}
} catch (IOException var) {
}
}
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exception和error区别
以java为例,其exception和error的码解区别如下:
1、Exception和Error都继承了Throwable类,码解在java中只有Throwable类型的码解谁有直播源码实例才可以被抛出(Throw)或者捕捉(catch),它是码解异常处理机制的基本组成类型。Exception是码解成品1688源码程序正常运行中,可以预料的码解意外情况,可能并且应该被捕获,码解进行相应的码解处理。
2、码解Error指在正常情况下,码解不大可能出现的码解情况,绝大部门的码解源码怎么储存Error都会导致程序处于非正常的,不可恢复状态。码解既然是码解非正常情况,所以不便于也不需要捕获。时间公式源码比如常见的OutOfMemoryError之类,都是Error的子类。
Exception类又分为可检查异常(checked)和不检查异常(unchecked),shell实战源码可检查异常在源码里必须显示的进行捕获处理,这是编译期检查的一部分。不检查异常就是所谓的运行时异常,类似NullPointerException,ArrayIndexOutOfBoundsException之类,通常是可以编码避免的逻辑错误。
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*** The throwable that caused this throwable to get thrown, or null if this
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* it indicates that the cause of this throwable has not yet been
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