Returns the lowest double value greater or equal to the input value and equal to an integer.
Math.ceil(double input_number)
Output is a double value .
	System.out.println(Math.ceil(-20));   // -20.0
	System.out.println(Math.ceil(-20.56));// -20.0
	System.out.println(Math.ceil(-20.12));// -20.0
	System.out.println(Math.ceil(20));    // 20.0
	System.out.println(Math.ceil(20.56)); // 21.0
	System.out.println(Math.ceil(20.12)); // 21.0

All Math functions


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