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calc
import java.util.Calendar; class Rextester { public static void main(String args[]) { calc( have, need ); } public static void calc(int have, int need){ Calendar now = Calendar.getInstance(); int gio, phut, gioNow, phutNow; gio = need / have / 12 / 60; phut = (need / have / 12) % 60; gioNow = now.get(Calendar.HOUR_OF_DAY) % 12 ; if(gioNow < 7) gioNow = gioNow + 5; else gioNow = gioNow - 7; phutNow = now.get(Calendar.MINUTE); System.out.println("Cần: " + gio + " giờ, " + phut + " phút"); System.out.println("Xong: " + (gioNow + gio) + " giờ, " + (phutNow + phut) + " phút"); } }
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