Creating arrays with new : Array « Collections Data Structure « Java

Home Java 1. 2D Graphics GUI 2. 3D 3. Advanced Graphics 4. Ant 5. Apache Common 6. Chart 7. Class 8. Collections Data Structure 9. Data Type 10. Database SQL JDBC 11. Design Pattern 12. Development Class 13. EJB3 14. Email 15. Event 16. File Input Output 17. Game 18. Generics 19. GWT 20. Hibernate 21. I18N 22. J2EE 23. J2ME 24. JavaFX 25. JDK 6 26. JDK 7 27. JNDI LDAP 28. JPA 29. JSP 30. JSTL 31. Language Basics 32. Network Protocol 33. PDF RTF 34. Reflection 35. Regular Expressions 36. Scripting 37. Security 38. Servlets 39. Spring 40. Swing Components 41. Swing JFC 42. SWT JFace Eclipse 43. Threads 44. Tiny Application 45. Velocity 46. Web Services SOA 47. XML

Java » Collections Data Structure » Array   Creating arrays with new       // : c04:ArrayNew.java // Creating arrays with new. // From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002 // www.BruceEckel.com. See copyright notice in CopyRight.txt. import java.util.Random; public class ArrayNew {   static Random rand = new Random();   public static void main(String[] args) {     int[] a;     a = new int[rand.nextInt(20)];     System.out.println("length of a = " + a.length);     for (int i = 0; i < a.length; i++)       System.out.println("a[" + i + "] = " + a[i]);   } } ///:~                                              Related examples in the same category 1. Initialize a static array 2. Initialization and re-assignment of arrays 3. Doubling the size of an array 4. Timing array loop performance 5. Array 2D 6. Can you change the .length of an array 7. Show Two-Dimensional Array of Objects 8. ArrayListDemo done over using an ArrayList 9. Array Hunt game 10. Multi Dimension Array 11. Clone Array 12. Associates keys with values 13. Arrays of primitives 14. Array initialization 15. Creating an array of nonprimitive objects 16. Create multidimension arrays 17. Initializing Array Values 18. Creating a Two-Dimensional Array 19. Initializing a Two Dimensional Array 20. Using the length Variable 21. Triangular array 22. Grow array 23. Define array for class 24. String array and output to console 25. Multiply two matrices 26. Array Of Arrays Demo 2 27. Array Copy Demo 28. Copying Elements from One Array to Another 29. Java program to demonstrate multidimensional arrays 30. Extend the size of an array 31. Copy an array 32. Initialize multidimensional array 33. Get array upperbound 34. To get the number of dimensions 35. Resize an array, System.arraycopy() 36. Dump array content: Convert the array to a List and then convert to String 37. java.utils.Arrays provides ways to dump the content of an array. 38. Dump multi-dimensional arrays 39. Use the new shorthand notation to iterate through an array 40. Create a repeated sequence of character 41. Reverse array elements order 42. Convert array of primitives into array of objects 43. Array Initializers 44. Reinitializes a byte array 45. Reinitializes an int array 46. Sum all elements in the array 47. Sums an array of numbers log(x1)...log(xn) 48. A class to iterate over all permutations of an array. 49. Palidrome Array 50. Set of utilities used to manipulate arrays. 51. ArrayUtils provides static methods for manipulating arrays when using a tool such as java.util.ArrayList is inconvenient. 52. Array Util 53. clone two dimensional array