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Java Exercises: Create a new array that is left shifted from a given array of integers

Java Basic: Exercise-106 with Solution

Write a Java program to create a new array that is left shifted from a given array of integers.

Pictorial Presentation:

Java Basic Exercises: Create an array that is left shifted from a given array of integers

Sample Solution:

Java Code:

import java.util.*; 
import java.io.*; 
 public class Exercise106 {
 public static void main(String[] args)
 {
	int[] array_nums = {11, 15, 13, 10, 45, 20};
    System.out.println("Original Array: "+Arrays.toString(array_nums)); 
	
	if(array_nums.length >1)
    {          
    int first = array_nums[0];
              
    for(int i = 1; i < array_nums.length; i++)
        array_nums[i - 1] = array_nums[i];
                        
    array_nums[array_nums.length - 1] = first;
	System.out.println("New Array: "+Arrays.toString(array_nums)); 
	}
  }
}

Sample Output:

Original Array: [11, 15, 13, 10, 45, 20]                               
New Array: [15, 13, 10, 45, 20, 11]

Flowchart:

Flowchart: Java exercises: Create a new array that is left shifted from a given array of integers

Java Code Editor:

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Previous: Write a Java program to check if a group of numbers (l) at the start and end of a given array are same.
Next: Write a Java program to check if an array of integers contains three increasing adjacent numbers.

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Java: Tips of the Day

Execution of console commands:

Java allows you to execute console commands directly from code using a class Runtime. It is very important not to forget about exception handling.

For example, let's try to open a PDF file through a Java terminal:

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
  
public class ShellCommandExec {
  
  public static void main(String[] args) {
    String gnomeOpenCommand = "gnome-open //home//user//Documents//MyDoc.pdf";
  
    try {
      Runtime rt = Runtime.getRuntime();
      Process processObj = rt.exec(gnomeOpenCommand);
  
      InputStream stdin = processObj.getErrorStream();
      InputStreamReader isr = new InputStreamReader(stdin);
      BufferedReader br = new BufferedReader(isr);
  
      String myoutput = "";
  
      while ((myoutput=br.readLine()) != null) {
        myoutput = myoutput+"\n";
      }
      System.out.println(myoutput);
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }
}