Use the valueOf() method to convert boolean value to Boolean. Firstly, let us take a boolean value.boolean val = false;Now, to convert it to Boolean object, use the valueOf() method.Boolean res = Boolean.valueOf(val);Let us now see the complete example to convert boolean value to Boolean.Example Live Demopublic class Demo {    public static void main(String[] args) {       boolean val = false;       System.out.println("Boolean Value = "+val);       Boolean res = Boolean.valueOf(val);       System.out.println("Boolean = " + res);       if (res.equals(Boolean.TRUE)) {          System.out.println("Boolean = " + res); ... Read More

To convert boolean to integer, let us first declare a variable of boolean primitive. boolean bool = true; Now, to convert it to integer, let us now take an integer variable and return a value “1” for “true” and “0” for “false”. int val = (bool) ? 1 : 0; Let us now see the complete example to convert boolean to integer in Java. Example public class Demo {    public static void main(String[] args) {       // boolean       boolean bool = true;       System.out.println("Boolean Value: "+bool);       int val = (bool) ? 1 : 0;       // Integer       System.out.println("Integer value: "+val);    } }OutputBoolean Value: true Integer value: 1

To convert a string to a number in Java, use the Integer.parseInt() method. First, let use create a String and set value.String str = "45";Now, take an Integer and use the Integer.parseInt() method.Integer i = Integer.parseInt(str);Let us see the complete example.Example Live Demopublic class Demo {    public static void main( String args[] ) {       String str = "45";       Integer i = Integer.parseInt(str);       System.out.println("Num: " + i);    } }OutputNum: 45

To convert decimal to hexadecimal, use any of the two methods i.e.Integer.toHexString() − It returns a string representation of the integer argument as an unsigned integer in base 16.Integer.parseInt() − It allows you to set the radix as well, for example, for hexadecimal set it as 16.Let us see an example now to convert decimal to hexadecimal using Integer.toHexString() method.Example Live Demopublic class Demo {    public static void main( String args[] ) {       int dec = 158;       System.out.println(Integer.toHexString(dec));    } }Output9eLet us see an example now to convert decimal to hexadecimal using Integer.parseInt() method.Example Live ... Read More

Use the toHexString() method to convert decimal to hexadecimal. The method returns a string representation of the integer argument as an unsigned integer in base 16. The following characters are used as hexadecimal digits:0123456789abcdef.The following is the syntax.String toHexString(int i)It has only single parameter.i − This is an integer to be converted to a string.Example Live Demopublic class Demo {    public static void main( String args[] ) {       int dec = 45;       System.out.println("Decimal = "+dec);       // converting to hex       System.out.println(Integer.toHexString(dec));    } }OutputDecimal = 45 2d

In this article, we will add integers and check for overflow using Java. To check for Integer overflow, we need to check the Integer.MAX_VALUE with the added integers result. Here, Integer.MAX_VALUE is the maximum value of an integer in Java. Let us see an example wherein integers are added and if the sum is more than the Integer.MAX_VALUE, then an exception is thrown. Problem Statement Write a Java program to add integers and check for overflow − Input a = 9897988 b = 8798798 Output Value1: 9897988Value2: 8798798Sum: 18696786 Steps to add integers and check for overflow Following are the steps to ... Read More

Use the parseInt() method with the second parameter as 8 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 octal to decimal, use the 2nd syntax and add radix as 8, since octal radix is 8.Integer.parseInt("25", 8)The following is an example.Example Live Demopublic class Demo {    public static void main( String args[] ) {       // converting to decimal       System.out.println(Integer.parseInt("25", 8));    } }Output21

Use the parseInt() method with the second parameter as 16 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 hex string to decimal, use the 2nd syntax and add radix as 16, since hexadecimal radix is 16.Integer.parseInt("12", 16)Example Live Demopublic class Demo {    public static void main( String args[] ) {       // converting to decimal       System.out.println(Integer.parseInt("444", 16));    } }Output1092

To concatenate a string to an int value, use the concatenation operator.Here is our int.int val = 3;Now, to concatenate a string, you need to declare a string and use the + operator.String str = "Demo" + val;Let us now see another example.Example Live Demoimport java.util.Random; public class Demo {    public static void main( String args[] ) {       int val = 3;       String str = "" + val;       System.out.println(str + " = Rank ");    } }Output3 = Rank

For a given String , our task is to write a Java program that converts it into an Integer. In Java, String is a class in java.lang package that stores a series of characters enclosed within double quotes. Integer is a primitive datatype that stores numerical values. Converting a String to int in Java We can use the following methods to convert a string into an integer in Java: Integer.parseInt() Integer.valueOf() Let's discuss these methods one by one with the help of example programs. Using Integer.parseInt() The Integer.parseInt() is a static method that belongs to the Integer class ... Read More