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I am trying to calculate % of used diskspace in Windows and totaldrive denotes total diskspace of c drive in Long and freedrive dentoes free space in Long.
long totaloccupied = totaldrive - freedrive; Here calculating % of usage
Long Percentageused =(totaloccupied/totaldrive*100); System.out.println(Percentageused); The print statement returns 0. Can someone help as I am not getting the desired value
581
Java Long divideUnsigned() Method. The divideUnsigned() method of Java Long class is used to return the unsigned quotient by dividing the first argument with the second argument such that each argument and the result is treated as an unsigned argument.
Java does integer division, which basically is the same as regular real division, but you throw away the remainder (or fraction). Thus, 7 / 3 is 2 with a remainder of 1. Throw away the remainder, and the result is 2. Integer division can come in very handy.
// Divide a literal by a literal; result is 5 int result = 10 / 2; // Divide a variable by another variable; result is 3 int a = 15; int b = 5; int result = a / b; When dividing integer types, the result is an integer type (see the previous chapter for the exact data type conversions for mathematical operations).
You are probably dividing a long with a long, which refers to (long/long = long) operation, giving a long result (in your case 0).
You can achieve the same thing by casting either operand of the division to a float type.
Long Percentageused = (long)((float)totaloccupied/totaldrive*100); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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