[英]Receiving an error while executing method substring in Java
我必须做一个字符串练习,我必须输入一个像 dd/mm/yyyy 这样的日期。 一切正常,除非我输入一个空格作为输入,它会打印此错误:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: begin 0, end 2, length 1
at java.base/java.lang.String.checkBoundsBeginEnd(String.java:3720)
at java.base/java.lang.String.substring(String.java:1909)
at ex5.main(ex5.java:17)
这是我的代码:
import cs1.*;
public class ex5
{
public static void main(String[] args)
{
String data = "18/08/2011";
//asking for the data
System.out.printf("DATA: ");
data = Keyboard.readString();
//system.out
System.out.printf("DIA: %s %n", data.substring(0, 2));
System.out.printf("MES: %s %n", data.substring(3, 5));
System.out.printf("ANY: %s", data.substring(6, 10));
}
}
我必须做一个字符串练习,在该练习中,我必须输入类似dd / mm / yyyy的日期。 一切正常,除非我输入空格作为输入,否则会打印此错误:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: begin 0, end 2, length 1
at java.base/java.lang.String.checkBoundsBeginEnd(String.java:3720)
at java.base/java.lang.String.substring(String.java:1909)
at ex5.main(ex5.java:17)
这是我的代码:
import cs1.*;
public class ex5
{
public static void main(String[] args)
{
String data = "18/08/2011";
//asking for the data
System.out.printf("DATA: ");
data = Keyboard.readString();
//system.out
System.out.printf("DIA: %s %n", data.substring(0, 2));
System.out.printf("MES: %s %n", data.substring(3, 5));
System.out.printf("ANY: %s", data.substring(6, 10));
}
}
我必须做一个字符串练习,在该练习中,我必须输入类似dd / mm / yyyy的日期。 一切正常,除非我输入空格作为输入,否则会打印此错误:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: begin 0, end 2, length 1
at java.base/java.lang.String.checkBoundsBeginEnd(String.java:3720)
at java.base/java.lang.String.substring(String.java:1909)
at ex5.main(ex5.java:17)
这是我的代码:
import cs1.*;
public class ex5
{
public static void main(String[] args)
{
String data = "18/08/2011";
//asking for the data
System.out.printf("DATA: ");
data = Keyboard.readString();
//system.out
System.out.printf("DIA: %s %n", data.substring(0, 2));
System.out.printf("MES: %s %n", data.substring(3, 5));
System.out.printf("ANY: %s", data.substring(6, 10));
}
}
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