Integer.parseInt出錯，爲什麽？

[maoliao]

class TestInteger
{
public static void main(String[] args) throws java.io.IOException
{

System.out.println("Please enter a integer");
String name="";
int c;
while((c=System.in.read())!='\n')
{
name+=(char)c;
}

System.out.println("name="+Integer.parseInt(name1));
}
}

//error!
//Exception in thread "main" java.lang.NumberFormatException q00
at java.lang.Integer.parseInt(Integer.java:426)
at ...

[Reve]

Attention:
"name1" --> "name"


class TestInteger
{
public static void main(String[] args) throws java.io.IOException
{

System.out.println("Please enter a integer");
String name="";
int c;
while((c=System.in.read())!='\n')
{
name+=(char)c;
}

System.out.println("name="+Integer.parseInt(name));
}
}

[zmrljl]

你是不是输入的字符串了

[binriyue]

System.out.println("name="+Integer.parseInt(name.trim()));

[dreamingmouse]

把这个程序运行一下看看 我觉得你需要捕获一下异常！！
class TestInteger
{
public static void main(String[] args) throws java.io.IOException
{
try{
System.out.println("Please enter a integer");
String name="";
int c;
while((c=System.in.read())!='\n')
{
name+=(char)c;
}

System.out.println("name="+Integer.parseInt(name));
}catch(Exception e){
System.out.println("input a number please!!");
}
}
}

[maoliao]

Sorry,name1是笔误

[wujinbao]

最好用System.out.println("name="+Integer.parseInt(name,10));

[maoliao]

binriyue(日月) is right,thank you!