The code is as follows:
Package Decisions;
import java.util.Scanner;
Public class CharactersTranverse {
//159523
/* *
* @ param args
*/
Public static void main (String [] args) {
//TODO Auto - generated method stub
System. The out. Println (" both Please enter a integer between 1000 and 999999: ");
Scanner in=new Scanner(System.in);
String num=in the next ();
in.close();
The String result="";
While (num. Length () & gt; 3) {
Result=num. Substring (0, num. Length () - (4);
}
Result=num + result;
System. The out. Println (" The result is "+ result);

}

}
Results:
Written application runs in eclipse, Enter 159523. Press the Enter key does not display the running results

CodePudding user response:

Death in while the debug cycle the brothers, you, always can be found in the loop, because your num is not changed, so has been the length=7

CodePudding user response:

You than while into the if judgment, the result is assigned a in the loop