Java 中可抛出的 getLocalizedMessage()方法，示例
原文:https://www . geesforgeks . org/throwable-get localized message-method-in-Java-with-examples/
可抛出类的 getLocalizedMessage() 方法用于在发生异常时获取可抛出对象的特定于区域的描述。它帮助我们根据本地特定消息修改可投掷对象的描述。对于不重写此方法的子类，此方法的默认实现返回与 getMessage()相同的结果。
语法:
public String getLocalizedMessage()
返回值:当异常发生时，该方法返回可投掷对象的特定于地区的描述。
下面的程序演示了可抛出类的 getLocalizedMessage()方法:
例 1:
// Java program to demonstrate
// the getLocalizedMessage() Method.
import java.io.*;
class GFG {
// Main Method
public static void main(String[] args)
throws Exception
{
try {
// add the numbers
addPositiveNumbers(2, -1);
}
catch (Exception e) {
System.out.println("LocalizedMessage = "
+ e.getLocalizedMessage());
}
}
// method which adds two positive number
public static void addPositiveNumbers(int a, int b)
throws Exception
{
if (a < 0 || b < 0) {
throw new Exception("Numbers are not Positive");
}
else {
System.out.println(a + b);
}
}
}
Output:
LocalizedMessage = Numbers are not Positive
例 2:
// Java program to demonstrate
// the ensureCapacity() Method.
import java.io.*;
class GFG {
// Main Method
public static void main(String[] args)
throws Exception
{
try {
testException();
}
catch (Throwable e) {
System.out.println("LocalizedMessage of Exception : "
+ e.getLocalizedMessage());
}
}
// method which throws IndexOutOfBoundsException
public static void testException()
throws IndexOutOfBoundsException
{
throw new IndexOutOfBoundsException(
"Forcefully Generated Exception");
}
}
Output:
LocalizedMessage of Exception : Forcefully Generated Exception
参考文献: https://docs . Oracle . com/javase/10/docs/API/Java/lang/throwable . html # getlocalized message()
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