周考一之重做

输入一个学生的成绩，如果学习成绩>=90分的同学用A表示，60-89分之间用B表示，60分以下的用C表示(10)

public static void main(String[] args){

Scanner scanner = new Scanner(System.in);

System.out.println("请输入学生成绩：");

Int grade = scanner.nextInt();

If(grade >=90){

System.out.println('A');

}else if(grade >= 60){

System.out.println('B');

}else{

System.out.println('C');

}

编写一个java程序在屏幕上输出1!+2!+3!+......+10!的和(10)

public class test {
public static void main(String[] args) {
int sum = 0;

int res = 1;
for(int i = 1; i<=10;i++){

res = sum*i;
sum += res;
}
System.out .println("1!+2!+3!+......+10!的和是" + sum);
}
}

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int [] arr1 = new int[3];

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int [] arr2 = new int[4];

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for(int i = 0;i <arr1.length;i++){

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                    arr1[i] = (int)(Math.random()*10);

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for(int i = 0;i <arr1.length;i++){

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                    arr1[i] = (int)(Math.random()*10);

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}

int[] arr3 = new int[arr1.length + arr2.length];

for (int i = 0; i < arr1.length; i++) {

    arr3[i] = arr1[i];

}

for (int i = 0; i < arr2.length; i++) {

    arr3[arr3.length+i-arr2.length] = arr2[i];

}

for(int i = 0;i < arr3.length - 1;i++){

    for(int j = 0;j <arr3.length - i - 1;j++){

        if(arr3[j] < arr3[j+1]){

            int temp = arr3[j];

            arr3[j] = arr3[j+1];

            arr3[j+1] = temp;

        }

    }

}

System.out.println("合并后的数组是：");

for(int v:arr3){

    System.out.print(v+"\t");

}

15个猴子围成一圈选大王,依次1-7循环报数,报到7的猴子被淘汰,直到最后一只猴子称为大王,问:哪只猴子会成为大王? 编写程序实现(20)

第五只称王

15个猴子围成一圈选大王,依次1-7循环报数,报到7的猴子被淘汰,直到最后一只猴子称为大王,问:哪只猴子会成为大王? 编写程序实现(20)

第五只称王

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int monkeyCount = 15;

int eliminateCount = 7;

boolean[] monkeys = new boolean[monkeyCount];

for (int i = 0; i < monkeyCount; i++) {

    monkeys[i] = true;

}

int remainingMonkeys = monkeyCount;

int currentIndex = 0;



while (remainingMonkeys > 1) {

    int count = 0;

    while (count < eliminateCount) {

        if (monkeys[currentIndex]) {

            count++;

        }

        currentIndex = (currentIndex + 1) % monkeyCount;

    }



    monkeys[(currentIndex + monkeyCount - 1) % monkeyCount] = false;

    remainingMonkeys--;

}



int kingIndex = 0;

while (!monkeys[kingIndex]) {

    kingIndex++;

}

int kingNumber = kingIndex + 1;

System.out.println("最终的大王编号是：" + kingNumber);

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int monkeyCount = 15;

int eliminateCount = 7;

boolean[] monkeys = new boolean[monkeyCount];

for (int i = 0; i < monkeyCount; i++) {

    monkeys[i] = true;

}

int remainingMonkeys = monkeyCount;

int currentIndex = 0;



while (remainingMonkeys > 1) {

    int count = 0;

    while (count < eliminateCount) {

        if (monkeys[currentIndex]) {

            count++;

        }

        currentIndex = (currentIndex + 1) % monkeyCount;

    }



    monkeys[(currentIndex + monkeyCount - 1) % monkeyCount] = false;

    remainingMonkeys--;

}



int kingIndex = 0;

while (!monkeys[kingIndex]) {

    kingIndex++;

}

int kingNumber = kingIndex + 1;

System.out.println("最终的大王编号是：" + kingNumber);