2015/10/24(六) Java入門及簡介_陳耿豪老師

/**

* @author Midnight_Pops 2015/10/24(六) Java入門及簡介_陳耿豪老師

*/

package helloworld;

public class HelloWorld {

public static void main(String[] args) {

String firstname = "Pei Hung";

String lastname = " Sung";

System.out.println(firstname+lastname);

float PI_1 = 3.14f;

double PI_2 = 3.14;

java.util.Scanner s1 = new java.util.Scanner(System.in);

java.util.Scanner s2 = new java.util.Scanner(System.in);

//System.out.println("我愛大咪咪");

//System.out.println("PI_1 = "+PI_1);

//System.out.println("PI_2 = "+PI_2);

// System.out.println("");

System.out.println("輸入2個隨意數字，將顯示兩數的5種運算『+-*/%』結果為多少。");

System.out.println("請輸入第一個數字");

int a = s1.nextInt();

System.out.println("請輸入第二個數字");

int b = s2.nextInt();

//double c0 = ((double)a*(double)b);

double c = ((double)a/(double)b);

double d = ((double)a%(double)b);

System.out.println("");

System.out.println("結果如下:");

System.out.println(a+"+"+b+" = "+(a+b));

System.out.println(a+"-"+b+" = "+(a-b));

System.out.println(a+"*"+b+" = "+(a*b));

System.out.println(a+"/"+b+" = "+(c));

System.out.println(a+"%"+b+" = "+(d));

int e = a;

int f = b;

int i = 0;

int g = a;

int h = b;

i = e++ + ++f;

//e = f++;

//g = ++h;

//System.out.println("c = b++ => "+"a = "+e+", b = "+f);

// System.out.println("c = ++b => "+"a = "+g+", b = "+h

System.out.println("c = a++ + ++b => "+"a = "+e+", b = "+f+", c = "+i);

}

}