1. Array Integer Primitive Example
public class MethodOne {public static void main(String [ ] args) {
int [ ] in = {1, 2, 3, 4, 5, 6};
System.out.println("Display Arrays Values : ");
System.out.println("First Elements : " + in[0]);
System.out.println("Second Elements : " + in[1]);
System.out.println("Third Elements : " + in[2]);
System.out.println("Fourth Elements : " + in[3]);
System.out.println("Fifth Elements : " + in[4]);
System.out.println("Sixth Elements : " + in[5]);
}
}
2. Array Character Primitive Example
public class MethodTwo {public static void main(String [ ] args) {
char [ ] ch = {'A','B','C','D','E','F'};
System.out.println("Display Arrays Values : ");
System.out.println("First Elements : " + ch[0]);
System.out.println("Second Elements : " + ch[1]);
System.out.println("Third Elements : " + ch[2]);
System.out.println("Fourth Elements : " + ch[3]);
System.out.println("Fifth Elements : " + ch[4]);
System.out.println("Sixth Elements : " + ch[5]);
}
}
3. Array Byte Primitive Example
public class MethodThree {public static void main(String [ ] args) {
byte [ ] bytes = {1, 2, 3, 4, 5, 6};
System.out.println("Display Arrays Values : ");
System.out.println("First Elements : " + bytes[0]);
System.out.println("Second Elements : " + bytes[1]);
System.out.println("Third Elements : " + bytes[2]);
System.out.println("Fourth Elements : " + bytes[3]);
System.out.println("Fifth Elements : " + bytes[4]);
System.out.println("Sixth Elements : " + bytes[5]);
}
}
4. Array Double Primitive Example
public class MethodFour {public static void main(String [ ] args) {
double[] dou = {1.1, 1.2, 1.3, 1.4, 1.5, 1.6};
System.out.println("Display Arrays Values : ");
System.out.println("First Elements : " + dou[0]);
System.out.println("Second Elements : " + dou[1]);
System.out.println("Third Elements : " + dou[2]);
System.out.println("Fourth Elements : " + dou[3]);
System.out.println("Fifth Elements : " + dou[4]);
System.out.println("Sixth Elements : " + dou[5]);
}
}
5. Array String Object Example
public class MethodFour {public static void main(String [ ] args) {
String [] str = {"One", "Two", "Three", "Four", "Five", "Six"};
System.out.println("Display Arrays Values : ");
System.out.println("First Elements : " + str[0]);
System.out.println("Second Elements : " + str[1]);
System.out.println("Third Elements : " + str[2]);
System.out.println("Fourth Elements : " + str[3]);
System.out.println("Fifth Elements : " + str[4]);
System.out.println("Sixth Elements : " + str[5]);
}
}
6. Integer Primitive Data Type Using For Loop
public class ForLoopForInteger {public static void main(String[] args) {
int [] in = {1, 2, 3, 4, 5, 6};
for(int i = 0; i < in.length; i++) {
System.out.println(in[i]);
}
}
}
7. Double Primitive Data Type Using For Loop
public class ForLoopForDouble {public static void main(String[] args) {
double [] dou = {1.1, 1.2, 1.3, 1.4, 1.5, 1.6};
for(int i = 0; i < dou.length; i++) {
System.out.println(in[i]);
}
}
}
8. Integer Primitive Data Type Using For Each Loop
public class ForEachLoopForInteger {public static void main(String[] args) {
int [] in = {1, 2, 3, 4, 5, 6};
for(int a : in) {
System.out.println(in[a]);
}
}
}
9. Byte Primitive Data Type Using For Each Loop
public class ForEachLoopForByte {public static void main(String[] args) {
byte[] bytes = {1, 2, 3, 4, 5, 6};
for (byte b : bytes) {
String st = String.format("%02X", b);
System.out.print(st);
}
}
}
10. Double Primitive Data Type Using For Each Loop
public class ForEachLoopForDouble {public static void main(String[] args) {
double[] dou = {1.1, 1.2, 1.3, 1.4};
for (double element: dou) {
System.out.println(element);
}
}
}
11. Compute Sum And Average for Array Program
publc class ComputeSumAverage {public static void main(String [ ] args) {
int [] numbers = {2, -9, 0, 5, 12, -25, 22, 9, 8, 12};
int sum = 0;
Double average;
for (int number: numbers) {
sum += number;
}
int arrayLength = numbers.length;
average = ((double)sum / (double)arrayLength);
System.out.println("Sum = " + sum);
System.out.println("Average = " + average);
}
}
12. Convert Byte Array to Hexa Decimal Value using Byte Operation
public class ConvertByteHexaDecimal {private final static char [ ] hexDecimal = "0123456789ABCDEF".toCharArray();
public static String bytesToHexDecimal(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for ( int j = 0; j < bytes.length; j++ ) {
int v = bytes[j] & 0xFF;
hexChars[j * 2] = hexArray[v >>> 4];
hexChars[j * 2 + 1] = hexArray[v & 0x0F];
}
return new String(hexChars);
}
public static void main(String[] args) {
byte[] bytes = {1, 2, 3, 4, 5, 6};
String s = bytesToHexDecimal(bytes);
System.out.println(s);
}
}