Question

Read the following codes and select the correct results without compiling and runtime errors. Object ol = new Point(5. -3): Object 02 = "hello there"; Object 03 = new Scanner(System.in); 1. String s = 01.toStringO; 2. int len = 02.length(): 3. String line = 03.nextLine(); 1. is correct while 2. and 3. are wrong 1. and 2. are correct while 3. is wrong 2. and 3. are correct while 1. is wrong All choices are correct

Answer 1

import java.util.Scanner;
public class Main
{
public void object(int w, int x)
{
  
System.out.println(w*x);
}
public void str(String a)
{
System.out.println(a);
}
   public static void main(String[] args) {
       System.out.println("Hello World");
       Main o1=new Main();
       o1.object(5,3);
       Main o2=new Main();
       o2.str("hello there");
       Main o3=new Scanner(System.in);
       String ol=o3.nextLine();
       System.out.println(ol);
      
   }
}import java.util.Scanner;
public class Main
{
public void object(int w, int x)
{
  
System.out.println(w*x);
}
public void str(String a)
{
System.out.println(a);
}
   public static void main(String[] args) {
       System.out.println("Hello World");
       Main o1=new Main();
       o1.object(5,3);
       Main o2=new Main();
       o2.str("hello there");
       Main o3=new Scanner(System.in);
       String ol=o3.nextLine();
       System.out.println(ol);
      
   }
}

output:-

Main.java:26: error: incompatible types: Scanner cannot be converted to Main
                Main o3=new Scanner(System.in);
                        ^
Main.java:27: error: cannot find symbol
                String ol=o3.nextLine();
                            ^
  symbol:   method nextLine()
  location: variable o3 of type Main
2 errors

Answer:-1 and 2 are correct while 3 is wrong