- Java.lang Package classes
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Java - Integer longValue() method
Description
The Java Integer longValue() method returns the value of this Integer as a long.
Declaration
Following is the declaration for java.lang.Integer.longValue() method
public long longValue()
Parameters
NA
Return Value
This method returns the numeric value represented by this object after conversion to type long.
Exception
NA
Example 1
The following example shows the usage of Integer longValue() method to get long value from an Integer object. We've created a Integer variable and assign it a Integer object containing a positive integer number. Then using longValue method, we're obtaining the long value from this object and then printed it.
package com.tutorialspoint; public class IntegerDemo { public static void main(String[] args) { Integer obj = new Integer(5); // returns the value of this Integer as a long long l = obj.longValue(); System.out.println("Value of l = " + l); } }
Output
Let us compile and run the above program, this will produce the following result −
Value of l = 5
Example 2
The following example shows the usage of Integer longValue() method to get long value from an Integer object. We've created a Integer variable and assign it a Integer object containing a negative integer number. Then using longValue method, we're obtaining the long value from this object and then printed it.
package com.tutorialspoint; public class IntegerDemo { public static void main(String[] args) { Integer obj = new Integer(-5); // returns the value of this Integer as a long long l = obj.longValue(); System.out.println("Value of l = " + l); } }
Output
Let us compile and run the above program, this will produce the following result −
Value of l = -5
Example 3
The following example shows the usage of Integer longValue() method to get long value from an Integer object. We've created a Integer variable and assign it a Integer object containing a zero value. Then using longValue method, we're obtaining the long value from this object and then printed it.
package com.tutorialspoint; public class IntegerDemo { public static void main(String[] args) { Integer obj = new Integer(0); // returns the value of this Integer as a long long l = obj.longValue(); System.out.println("Value of l = " + l); } }
Output
Let us compile and run the above program, this will produce the following result −
Value of l = 0
Example 4
The following example shows the usage of Integer longValue() method to get long value from an Integer object. We've created a Integer variable and assign it a Integer object containing a negative zero value. Then using longValue method, we're obtaining the long value from this object and then printed it.
package com.tutorialspoint; public class IntegerDemo { public static void main(String[] args) { Integer obj = new Integer(-0); // returns the value of this Integer as a long long l = obj.longValue(); System.out.println("Value of l = " + l); } }
Output
Let us compile and run the above program, this will produce the following result −
Value of l = 0