1.不使用中間變量交換兩個數ide
public class Exchange { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("請輸入一個整數:"); Long num1 = scanner.nextLong(); System.out.println("請輸入一個整數:"); Long num2 = scanner.nextLong(); System.out.println("交換前num1:"+num1+" 交換前num2:"+num2 ); num1 = num1^num2; num2 = num2^num1; num1 = num1^num2; System.out.println("交換後num1:"+num1+" 交換後num2:"+num2 ); } }
2.利用三目運算符判斷奇偶性spa
public class ParityCheck { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("請輸入一個整數:"); Long num = scanner.nextLong(); String s = (num%2==0)?"這個數是:偶數":"這個數是:奇數"; System.out.println(s); } }