package 數(shù)據(jù)類型;//動態(tài)初始化class DynInit {?public static void main(String args[]){??double a = 3.0, b = 4.0;????double c = Math.sqrt(a * a + b * b);//sqrt()為Java的內(nèi)置方法，求參數(shù)的平方根????System.out.println("斜邊長度為 " + c);?}
}
posted on 2008-04-11 14:34 dripstone 閱讀(201) 評論(0) 編輯 收藏
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