//homework1
System.out.println("How many numbers? ");
int num = scan.nextInt();
System.out.println("enter numbers");
int number=0;
int max=0;
int i=0;
while(i<num) {
max=number;
number = scan.nextInt();
if(number>max) {
max=number;
}
else {
number=max;
}
i++;
}
System.out.println("the max number= "+max);
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the first integer: ");
int start = scanner.nextInt();
System.out.print("Enter the second integer: ");
int end = scanner.nextInt();
printPrimeNumbers(start, end);
}
private static boolean isPrime(int number) {
if (number <= 1) {
return false;
}
for (int i = 2; i <= Math.sqrt(number); i++) {
if (number % i == 0) {
return false;
}
}
return true;
}
private static void printPrimeNumbers(int start, int end) {
for (int i = start; i <= end; i++) {
if (isPrime(i)) {
System.out.print(i + " ");
}
}
System.out.println();
}
//homework5
Scanner scan = new Scanner(System.in);
System.out.print("Enter a non-negative integer: ");
int number = scan.nextInt();
long factorial = 1;
for (int i = 1; i <= number; i++) {
factorial *= i;
}
System.out.println("Factorial of " + number + " = " + factorial);
//homework8
Scanner scan = new Scanner(System.in);
System.out.print("Enter R : ");
int R= scan.nextInt();
int loop=0;
do {
System.out.println(loop*4);
loop += 2;
}while(loop<R);
}}
//homework9
int z=0;
Scanner scan = new Scanner(System.in);
for(int i=0;i<5;i++) {
for(int j=0;j<10;j++) {
z=i+2*j;
}
}
System.out.print(z);
//homework10(a)
for(int i =0;i<5;i++) {
for(int j=0;j<=i;j++) {
System.out.print('*');
}
System.out.print('\n');
}
//homework10(c)
for(int i =0;i<5;i++) {
for(int j=4;j>=i;j--) {
System.out.print('*');
}
System.out.print('\n');
}