如果在c的平方根范围内,存在两数平方和等于c,那么先将单个数的平方值a添加进set中,然后再去判断set中是否存在c减去a的另一个值b,如果存在就返回true。 publicbooleanjudgeSquareSum(intc){ HashSet<Integer> set =newHashSet<>();intnum = (int)Math.sqrt(c);for(inti=num; i >=0; i--) { set.a...
原文:https://beginnersbook.com/2017/09/java-program-to-reverse-words-in-a-string/ 该程序反转字符串的每个单词并将反转的字符串显示为输出。例如,如果我们输入一个字符串"reverse the word of this string",那么程序的输出将是:"esrever eht drow fo siht gnirts"。 要了解此程序,您应该具有以下Java 编程...
TheprintAltPrime()method prints the alternate prime numbers upto the value passed as an argument. Do read the comments to understand the logic of the program. classJavaExample{//method for checking prime numberstaticintcheckPrime(intnum){inti,flag=0;for(i=2;i<=num/2;i++){if(num%i==0)...
// Find sum and average of two numbers in Java import java.util.*; public class Numbers { public static void main(String args[]) { int a, b, sum; float avg; Scanner buf = new Scanner(System.in); System.out.print("Enter first number : "); a = buf.nextInt(); System.out....
Based on the value of the discriminant, the roots are calculated as given in the formula above. Notice we've used library function Math.sqrt() to calculate the square root of a number.We have used the format() method to print the calculated roots....
This is a Java Program to Print the Odd & Even Numbers in an Array. Enter size of array and then enter all the elements of that array. Now using for loop and if codition we use to distinguish whether given integer in the array is odd or even. ...
9. First 10 Happy Numbers Write a Java program to find and print the first 10 happy numbers. Happy number: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1, or it loops endlessly in a cycle...
“Possible Loss of Precision”错误通常发生在: 尝试为整数数据类型的变量分配一个实数。 尝试为整数数据类型的变量分配一个double。 此Java中基本数据类型的解释表述了数据特征。(@Oracle) 11.“Reached End of File While Parsing” 当程序缺少关闭大括号(“}”)时,Java代码中就会发生此错误消息。 有时我们可以...
The compiler has also been added so that you can execute the programs yourself, alongside suitable examples and sample outputs added for each program. Also, we will see the method of how to find out prime numbers between 1 to n, 1 to 100 The methods used aforementioned are: Using Static ...
Java program to print X star pattern program – We have written the below print/draw X asterisk/star pattern program in four different ways with sample example and output, check it out. At the end of the program, we have added compiler so that you can execute the below codes. ...