Question

Java

Do 61a, 61b, 61c, 61d. Show Output and Code.

public class Employee { private int id; private String name; private int sal; public Employee(int id, String name, int sal) { super(); this.id = id; this.name = name; this.sal = sal; } public int getid) { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; public void setName(String name) { this.name = name; } public int get Sall) { return sal; } public void setSal(int sal) { this.sal = sal; }

Answer 1

61a)

import java.util.*; 
  
public class demo { 
  
    // Function to remove duplicates from an ArrayList 
    public static <T> ArrayList<T> removeDuplicates(ArrayList<T> list) 
    { 
  
       
        ArrayList<T> newList = new ArrayList<T>(); 
  
        // Traverse through the first list 
        for (T element : list) { 
  
            // If this element is not present in newList 
            // then add it 
            if (!newList.contains(element)) { 
  
                newList.add(element); 
            } 
        } 
  
        // return the new list 
        return newList; 
    } 
  
    
    public static void main(String args[]) 
    { 
  
        // Get the ArrayList with duplicate values 
        ArrayList<Integer> a1 = new ArrayList<Integer>( );
        a1.add(10);
        a1.add(5);
        a1.add(7);
        a1.add(16);
        a1.add(7);
        a1.add(16);
                
  
        // Remove duplicates 
        ArrayList<Integer> 
            newList = removeDuplicates(list); 
  
        // Print the ArrayList with duplicates removed 
        System.out.println("ArrayList with duplicates removed: "
                           + newList); 
    } 
} 

output

ArrayList with duplicates removed: [10, 5, 7, 16]

61b)

import java.util.*; 
  
public class demo { 
  
   
    public static void main(String args[]) 
    { 
  
        // Get the ArrayList with duplicate values 
        ArrayList<Integer> a1 = new ArrayList<Integer>( );
        a1.add(10);
        a1.add(5);
        a1.add(7);
        a1.add(16);
        a1.add(7);
        a1.add(16);
        
        ArrayList<Integer> a2 = new ArrayList<Integer>( );
        a2.add(100);
        a2.add(7);
        a2.add(5);
        a2.add(56);
        a2.add(17);
        a2.add(26);
        
        ArrayList<Integer> a3= new ArrayList<Integer>( );
        a3.addAll(a1);
        a3.addAll(a2);

                
  
        
  
        // Print the ArrayList 
        System.out.println("ArrayList : "
                           + a3); 
    } 
} 

output

ArrayList : [10, 5, 7, 16, 7, 16, 100, 7, 5, 56, 17, 26]

61c)

import java.util.*; 
  
public class demo { 
  
    // Function to remove duplicates from an ArrayList 
    public static <T> ArrayList<T> removeDuplicates(ArrayList<T> list) 
    { 
  
       
        ArrayList<T> newList = new ArrayList<T>(); 
  
        // Traverse through the first list 
        for (T element : list) { 
  
            // If this element is not present in newList 
            // then add it 
            if (!newList.contains(element)) { 
  
                newList.add(element); 
            } 
        } 
  
        // return the new list 
        return newList; 
    } 
  
    
    public static void main(String args[]) 
    { 
  
        // Get the ArrayList with duplicate values 
        ArrayList<Integer> a1 = new ArrayList<Integer>( );
        a1.add(10);
        a1.add(5);
        a1.add(7);
        a1.add(16);
        a1.add(7);
        a1.add(16);
                
        ArrayList<Integer> a2 = new ArrayList<Integer>( );
        a2.add(100);
        a2.add(7);
        a2.add(5);
        a2.add(56);
        a2.add(17);
        a2.add(26);
        
        ArrayList<Integer> a3= new ArrayList<Integer>( );
        a3.addAll(a1);
        a3.addAll(a2);
        // Remove duplicates 
        ArrayList<Integer> 
            newList = removeDuplicates(a3); 
  
        // Print the ArrayList with duplicates removed 
        System.out.println("ArrayList with duplicates removed: "
                           + newList); 
    } 
} 

output

ArrayList with duplicates removed: [10, 5, 7, 16, 100, 56, 17, 26]

61d)

import java.util.*; 


public class Employee{
    int id,salary;
    String name;
    Employee(int id,String name,int salary)
    {
        this.id=id;
        this.name=name;
        this.salary=salary;
    }
     
}  
public class demo { 
  
   
    public static void main(String args[]) 
    { 
  
        
       
        
        ArrayList<Employee> a1= new ArrayList<Employee>( );
        a1.add(new Employee(101,"sam",1000));
        a1.add(new Employee(102,"sameer",2000));
        a1.add(new Employee(103,"shivam",3000));
        a1.add(new Employee(104,"ram",4000));
        a1.add(new Employee(105,"ramesh",5000));
        a1.add(new Employee(106,"sameera",6000));
        
        ArrayList<Integer> a2=new ArrayList<>();
        for (Employee i : a1) 
        {
            a2.add(i.id);
        }

                
  
        
  
        // Print the ArrayList 
        System.out.println("ArrayList with ids : "
                           + a2); 
    } 
} 

output

ArrayList with ids: [101, 102, 103, 104, 105, 106]

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