Java5

NewClass

public class NewClass {
   public static void main(String[] args) {
   if(args!=null && args.length>0){
       System.out.println(args[0]);
   }
}
 
}

NewClass1

public class NewClass1 {

    public static void main(String[] args) {
        int x[] = new int[3];
       // System.out.println(x.length);
        x[0] = 7;
        x[1] = 8;
        x[2] = 2;
       
       // System.out.println(x[2]);
        
        for(int i =0; i<x.length; i++){
            System.out.println(x[i]);
        }
        
        //element from array
        for(int j : x){
            System.out.println(j);
        }
    }

}

NewClass10

import java.util.Arrays;

/*

 */
public class NewClass10 {
    public static void main(String[] args) {
        int x[][] = new int[3][3];
        System.out.println(x.length);
        System.out.println(x[1].length);
        
        x[0][0] = 4;
        x[0][1] = 7;
        x[0][2] = 9;
        
        x[1][0] = 2;
        x[1][1] = 4;
        x[1][2] = 6;
        
        x[2][0] = 9;
        x[2][1] = 5;
        x[2][2] = 1;
        
         
        for(int i =0; i<x.length ; i++){
            for(int j =0; j<x[i].length ; j++){
                System.out.print(x[i][j]+"   ");
            }
            System.out.println("");
        }
        
        
        for(int j[] : x){
            for(int k : j){
                System.out.print(k+"   ");
            }
            System.out.println("");
        }
        
       
        for (int i = 0; i <x.length; i++) {
             System.out.println(Arrays.toString(x[i]));  
        }
        
        
    }
   
}

NewClass11

/*

 */

public class NewClass11 {

    public static void main(String[] args) {
        int x[][] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
        int j = x.length - 1;
        int sum = 0;
        for (int i = 0; i < x.length; i++) {
            sum = sum + x[i][j];
            j--;
        }

        System.out.println(sum);

        int sum1 = 0;
        for (int i = 0; i < x.length; i++) {
            sum1 = sum1 + x[i][i];
        }

        System.out.println(sum1);

    }
}

NewClass2

/*
 while
 */
public class NewClass2 {
    public static void main(String[] args) {
        int i =0;
        while(i<5){
            System.out.println(i);
            i++;
        }
    }
   
}

NewClass3

/*
do while
 */
public class NewClass3 {
    public static void main(String[] args) {
        int i = 0;
        do{
            System.out.println(i);
            i++;
        }while(i<5);
    }
  
}

NewClass4

public class NewClass4 {

    public static void main(String[] args) {
        int x[] = {1, 2, 3, 4};
        System.out.println(x.length);

    }

}

NewClass5

import java.util.Arrays;
import java.util.Scanner;

/*

 */
public class NewClass5 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter array length");
        int length = sc.nextInt();
        int x[] = new int[length];
        
        for(int i =0 ; i< x.length ; i++){
             System.out.println("Enter element @ index "+i);
             x[i] = sc.nextInt();
        }
        
        System.out.println(Arrays.toString(x));
        
             
             

    }
 
}

NewClass6

import java.util.Random;

/*

 */
public class NewClass6 {
    public static void main(String[] args) {
        String [] str = {"A","B","C","D"};
        Random r = new Random();
        int i = r.nextInt(str.length);//index
        System.out.println(str[i]);
       
    }
  
}

NewClass7

public class NewClass7 {
  public static void main(String[] args) {
           String [] str = {"A","B","C","D","E"};
          if(str.length%2==0){
              System.out.println(str[str.length/2 -1 ]+" "+str[str.length/2]);
          }  else{
              System.out.println(str[str.length/2]);
          }
}
  
}

NewClass8

/*

 */
public class NewClass8 {
    public static void main(String[] args) {
        int x[] = {4,8,9,7,9,3};
        int sum = 0;
        for (int i = 0; i < x.length; i++) {
            sum = sum + x[i];
        }
        
        
        System.out.println(sum);
    }
  
}

NewClass9

/*

 */
public class NewClass9 {
    public static void main(String[] args) {
          int x[] = {4,8,9,7,9,3};
          int sum =0;
          for(int j : x){
              sum = sum + j;
          }
          
          System.out.println(sum);
    }
    
}