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Found 9326 Articles for Object Oriented Programming
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
9K+ Views
To check whether a character is in Lowercase or not in Java, use the Character.isLowerCase() method.We have a character to be checked.char val = 'q';Now let us use the Character.isLowerCase() method.if (Character.isLowerCase(val)) { System.out.println("Character is in Lowercase!"); }else { System.out.println("Character is in Uppercase!"); }Let us see the complete example now to check for Lowercase in Java.Example Live Demopublic class Demo { public static void main(String []args) { System.out.println("Checking for Lowercase character..."); char val = 'q'; System.out.println("Character: "+val); if (Character.isLowerCase(val)) { System.out.println("Character is ... Read More
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
910 Views
The following is our byte array.byte[] b = new byte[]{'p', 'q', 'r'};We have created a custom method “display” here and passed the byte array value. The same method converts byte array to hex string.public static String display(byte[] b1) { StringBuilder strBuilder = new StringBuilder(); for(byte val : b1) { strBuilder.append(String.format("%02x", val&0xff)); } return strBuilder.toString(); }Let us see the entire example now.Example Live Demopublic class Demo { public static void main(String args[]) { byte[] b = new byte[]{'p', 'q', 'r'}; /* byte array cannot be displayed as String ... Read More
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
750 Views
To check for Integer overflow, we need to check the Integer.MAX_VALUE with the multiplied integers result, Here, Integer.MAX_VALUE is the maximum value of an integer in Java.Let us see an example wherein integers are multiplied and if the result is more than the Integer.MAX_VALUE, then an exception is thrown.The following is an example showing how to check for Integer overflow.Example Live Demopublic class Demo { public static void main(String[] args) { int val1 = 9898; int val2 = 6784; System.out.println("Value1: "+val1); System.out.println("Value2: "+val2); long mul ... Read More
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
509 Views
Use the parseInt() method with the second parameter as 2 since it is the radix value. The parseInt() method has the following two forms.static int parseInt(String s) static int parseInt(String s, int radix)To convert binary to decimal, use the 2nd syntax and add radix as 2, since binary radix is 2.Integer.parseInt("1110", 2)Example Live Demopublic class Demo { public static void main( String args[] ) { // converting to decimal System.out.println(Integer.parseInt("1110", 2)); } }Output14
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
71 Views
The method Integer.lowestOneBit() returns an int value with at most a single one-bit, in the position of the lowest-order ("rightmost") one-bit in the specified int value.Here we have a decimal value 294, whose binary is −100100110The lowest one bit is calculated using the lowestOneBit() method in Java.Example Live Demopublic class Demo { public static void main(String []args) { // binary 100100110 int dec = 294; System.out.println("Count of one bits = " + Integer.bitCount(dec)); System.out.println("Lowest one bit: " + Integer.lowestOneBit(dec)); } }OutputCount of one bits = 4 Lowest one bit: 2
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
1K+ Views
To convert a byte to hexadecimal equivalent, use the toHexString() method in Java.Firstly, let us take a byte value.byte val1 = (byte)90;Before using the method, let us do some more manipulations. Mask the byte value now:int res = val1 & 0xFF;Let us now see the complete example and use the toHexString() method to convert a byte to hexadecimal equivalent.Example Live Demopublic class Demo { public static void main(String[] args) { byte val1 = (byte)90; System.out.println("Byte = "+val1); int res = val1 & 0xFF; System.out.println("Hexadecimal = "+Integer.toHexString(res)); } }OutputByte = 90 Hexadecimal = 5a
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
161 Views
Firstly, let us declare byte values.byte val1 = 127; byte val2 = -128;To convert the above given unsigned byte, you can use the following. Here, we are first implementing it for the variable “val1”.(int) val1 & 0xFFNow for the second variable “val2”.(int) val2 & 0xFFLet us see the complete example to convert an UNSIGNED bye to a JAVA type.Example Live Demoimport java.util.*; public class Demo { public static void main(String[] args) { byte val1 = 127; byte val2 = -128; System.out.println(val1); System.out.println((int) val1 & 0xFF); System.out.println(val2); System.out.println((int) val2 & 0xFF); } }Output127 127 -128 128
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
228 Views
To compare two Byte Arrays, use the Arrays.equals() method. Here we have declared and initialized a total of 4 arrays.byte[] arr1 = new byte[] { 11, 13, 30, 45, 77, 89 }; byte[] arr2 = new byte[] { 12, 13, 34, 87, 99, 33}; byte[] arr3 = new byte[] { 11, 13, 30, 45, 77, 89 }; byte[] arr4 = new byte[] { 13, 16, 56, 78, 98, 99 };Now, using the Arrays.equals() method, we will be compare two arrays.Arrays.equals(arr1, arr2);In the same way, other arrays would be compared one by one.Let us see the complete example to compare two ... Read More
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
422 Views
In Java, there are different ways to convert byte to string.Using toString() method, you can easily convert byte to string as shown below −Example Live Demopublic class Demo { public static void main(String[] args) { byte res = 87; // byte to string System.out.println(Byte.toString(res)); } }Output87In the above example, we have taken a byte value.byte res = 87;With that, to convert to string, the method toString() is used as shown below −Byte.toString(res);Let us see another example to convert byte to string.Example Live Demopublic class Demo { public static void main(String[] ... Read More
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
278 Views
The following is an example displaying the minimum of three integer values.Example Live Demopublic class Demo { public static void main(String[] args) { int val1 = 99; int val2 = 87; int val3 = 130; System.out.println("Number 1 = "+val1); System.out.println("Number 2 = "+val2); System.out.println("Number 3 = "+val3); if (val2 < val1) { val1 = val2; } if (val3 < val1) { val1 = val3; ... Read More