The practical -4 | OOPS

1d (sorting) | oops .java

import java.util.*;
class onedarray{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int arr[]=new int[5];
    for(int i=0;i<5;i++){
      arr[i]=sc.nextInt();
    }

    //sorting program
    int temp;
    for(int i=0;i<5;i++){
      for(int j=0;j<5;j++){
        if(arr[i]>arr[j]){
          temp=arr[i];
          arr[i]=arr[j];
          arr[j]=temp;
        }
      }
    }
    //print the array which we sorted
    for(int i=0;i<5;i++){
      System.out.println(arr[i]);
    }
  }
}

2d array | oops .java

import java.util.*;
class twodarray{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int matrix1[][]=new int[2][2];
    int matrix2[][]=new int[2][2];
    System.out.println("enter the first matrix");
    //Input for matrix 1
    for(int i=0;i<2;i++){
      for(int j=0;j<2;j++){
          matrix1[i][j]=sc.nextInt();
      }
    }
    System.out.println("enter the second matrix");
    //Input for matrix 2
    for(int i=0;i<2;i++){
      for(int j=0;j<2;j++){
          matrix2[i][j]=sc.nextInt();
      }
    }

    //addition of two matrices
    for(int i=0;i<2;i++){
      for(int j=0;j<2;j++){
          matrix1[i][j]=matrix1[i][j]+matrix2[i][j];
      }
    }
    System.out.println("The ans is");
    //print the answer
    for(int i=0;i<2;i++){
      for(int j=0;j<2;j++){
        System.out.print(matrix1[i][j]+" ");
      }
      System.out.println();
    }

  }
}

this keyword | oops.java

class PointCoordinates{

  private int x,y;
  public int add(int x,int y){
    this.x=x;
    this.y=y;
    return x+y;
  }
  public int getX(){
    return x;
  }
  public int getY(){
    return y;
  }
}
class thisfunction{
  public static void main(String args[]){
    PointCoordinates obj = new PointCoordinates();
    int sum= obj.add(1,2);
    int m=obj.getX();
    int n=obj.getY();
    System.out.println(sum);
    System.out.println(m);
    System.out.println(n);
    System.out.println(obj);
  }
}