Question

Find the output (do the necessary working in your copy and write only the answer / output):
String s="Java 5.1";
    String r="";
    for(int i=s.length()-1; i>=0; i-=2)
    {
        char ch=s.charAt(i);
        if(Character.isDigit(ch))         ch='*';
        else if(Character.isLowerCase(ch))          ch++;
         r=ch+r;
    }
    System.out.println(r);​

Answer 1

public class LengthExample2 {

public static void main(String[] args) {

String str = "Javatpoint";

if(str.length()>0) {

System.out.println("String is not empty and length is: "+str.length());

}

str = "";

if(str.length()==0) {

System.out.println("String is empty now: "+str.length());

}

}

}

JavaScript string arc..