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Java - Double longValue() method
Description
The Java Double longValue() method returns the long value of this Double object.
Declaration
Following is the declaration for java.lang.Double.longValue() method
public long longValue()
Parameters
NA
Return Value
This method returns the long value represented by this object.
Exception
NA
Example 1
The following example shows the usage of Double longValue() method to get a long primitive value of given positive Double object. We've initialized a Double object with a given positive long value. Then using longValue() method, we're printing its value.
package com.tutorialspoint; public class DoubleDemo { public static void main(String[] args) { Double d = new Double("15.30"); //return the long value System.out.println("Value = " + d.longValue()); } }
Output
Let us compile and run the above program, this will produce the following result −
Value = 15
Example 2
The following example shows the usage of Double longValue() method to get a long primitive value of given negative Double object. We've initialized a Double object with a given positive long value. Then using longValue() method, we're printing its value.
package com.tutorialspoint; public class DoubleDemo { public static void main(String[] args) { Double d = new Double("-15.30"); //return the long value System.out.println("Value = " + d.longValue()); } }
Output
Let us compile and run the above program, this will produce the following result −
Value = -15
Example 3
The following example shows the usage of Double longValue() method to get a long primitive value of given negative Double object of zero value. We've initialized a Double object with a given positive long value. Then using longValue() method, we're printing its value.
package com.tutorialspoint; public class DoubleDemo { public static void main(String[] args) { Double d = new Double("-0.0"); //return the long value System.out.println("Value = " + d.longValue()); } }
Output
Let us compile and run the above program, this will produce the following result −
Value = 0
Example 4
The following example shows the usage of Double longValue() method to get a long primitive value of given positive Double object of zero value. We've initialized a Double object with a given positive long value. Then using longValue() method, we're printing its value.
package com.tutorialspoint; public class DoubleDemo { public static void main(String[] args) { Double d = new Double("+0.0"); //return the long value System.out.println("Value = " + d.longValue()); } }
Output
Let us compile and run the above program, this will produce the following result −
Value = 0