A. nextDouble() B. nextFloat() C. nextInt(100) D. nextInt()
A. 用来生成一个 [1, 1.0)之间的随机double值 B. 用来生成一个(1, 1.0)之间的随机double值 C. 用来生成一个(1, 1.0] 之间的随机double值 D. 以上都不对
A. Random r = new Random();double d = r.nextDouble()*0.5; B. Random r = new Random();double d = r.nextDouble()*5; C. Random r = new Random();double d = r.nextDouble()*0.05; D. 以上都不对
A. Random r = new Random();double d = r.nextDouble()*2.5 + 1; B. Random r = new Random();double d = r.nextDouble()*2.5; C. Random r = new Random();double d = r.nextDouble()*0.5 + 1; D. Random r = new Random();double d = r.nextDouble()*1.5 + 1;
A. double d = Math.abs( r.nextInt() % 10 ); B. double d = Math.abs( r.nextInt() / 10 ); C. double d = Math.ceil( r.nextInt() % 10 ); D. double d = Math.floor( r.nextInt() % 10 );