6.9 try...catch语句
一个try-catch语句应该具有如下格式:
try {
statements;
} catch (exceptionclass e) {
statements;
}
一个try-catch语句后面也可能跟着一个finally语句,不论try代码块是否顺利执行完,它都会被执行。
try {
statements;
} catch (exceptionclass e) {
statements;
} finally {
statements;
}
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