编写方法,按升序显示三个数。编写测试程序,提示用户输入三个整数,调用方法以升序显示它们。public class Sort {public static void main(String[] args) {Scanner scan=new Scanner(System.in);System.out.print("请输入三个整数:");int num1=scan.nextInt();int num2=scan.nextInt();int num3=scan.nextInt();System.out.printf("%d,%d,%d\n",num1,num2,num3);displaySortedNum(num1,num2,num3);}public static void displaySortedNum(int num1, int num2, int num3) {if(num1>num2){int temp=num1;num1=num2;num2=temp;}if(num1>num3){int temp=num1;num1=num3;num3=temp;}if(1){int temp=2;=num2;num2=temp;}System.out.printf("%d,%d,%d\n",num1,num2,num3);}}
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编写方法,求两个整数的最大值。调用该方法,显示变量a及b的最大值。public class MaxOfTwoNumber {public static void main(String[] args) {int a=3;int b=5;int z=;System.out.println(z);}public static2 max(int num1,int num2){int result=3 ;if(num2>result){4;}return5;}}
编写方法,将百分制转为等级制。调用该方法,显示78.5分的等级。public class MethodGrade {public static void main(String[] args) {1 ;}public static2getGrade( 3 ) {if (score < 0 || score > 100) {System.out.println("非法成绩");3;}if (score >= 90.0) {System.out.println('A');} else if (score >= 80.0) {System.out.println('B');} else if (score >= 70.0) {System.out.println('C');} else if (score >= 60.0) {System.out.println('D');} {System.out.println('F');}}}
编写多个求最大值的方法,实现方法的重载。public class MethodDemo {public static void main(String[] args) {System.out.println("3与4最大值为:" + max(3, 4));System.out.println("3.0与5.7最大值为:" + max(3.0, 5.7));System.out.println("3.0,5.7与10.4最大值为:" + max(3.0, 5.7, 10.4));}public static int max(1) {if (num1 > num2) {return num1;} else {return num2;}}public static double max(2 ) {if (num1 > num2) {return num1;} else {return num2;}}public static double3 (double num1, double num2, double num3) {return max( 4, num3);}}
下列哪一项不属于项目的要素( )。
A. 率
B. 质量
C. 间
D. 本