+substring(beginIndex: int, endIndex: int); return type String

-
import java.lang.String;
class subStringstartend{
                    public static void main(String[] arg){ 
                          String str1="Welcome to Java";
                          String str2=str1.substring(3,11);
                         
                          System.out.println("str1: "+str1);
                          System.out.println("str2=str1.substring(3,11): "+str2);
                         }
                     }

Output:  str1: Welcome to Java
              str2=str1.substring(3,11): come to
Note: If beginIndex is endIndex, substring(beginIndex, endIndex) return an empty string with length 0. If beginIndex > endIndex, it would be run time error.

import java.lang.String;
class subStringstartend{
                    public static void main(String[] arg){ 
                          String str1="Welcome to Java";
                          String str2=str1.substring(11,2);
                         
                          System.out.println("str1: "+str1);
                          System.out.println("str2=str1.substring(11,2): "+str2);
                         }
                     }

 This code will compile normally but show error at run time.......

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