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[英]Java error: unreported exception ioexception must be caught or declared to be thrown
[英]test1.java:10: error: unreported exception IOException; must be caught or declared to be thrown char ch = (char)br.read(); ^
任何幫助將不勝感激
我的代碼:
import java.io.*;
import java.util.Scanner;
類接受{
public static void main(String args[])
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter: ");
char ch = br.read();
System.out.print("Entered is: " + ch);
}
}
就像錯誤所說的那樣,您必須捕獲或拋出上述方法拋出的IOException
。
您可以通過以下方式拋出它:
public static void main(String args[]) throws IOException
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter: ");
char ch = (char) br.read();
System.out.print("Entered is: " + ch);
}
Java 教程是開始學習 Java 異常的好地方。
你也可以試試這個:
public static void main(String[] args) {
try {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter: ");
char ch = (char) br.read();
System.out.print("Entered is: " + ch);
}catch(IOException ex) {
Logger.getLogger(State.class.getName()).log(Level.SEVERE, null, ex);
}
}
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