(“請輸入第壹個數字:“);
int num 1 = in . nextint();
系統輸出打印
(“請輸入第壹個數字:“);
int num 2 = in . nextint();
System.out.println
(“請選擇壹個算法:1。加2。減去3。乘以4。分”);
int xz = in . nextint();開關(xz){
案例1: System.out.println
(“結果是:“+(num 1+num 2));
打破;案例2: System.out.println
(“結果是:“+(num 1-num 2));
打破;案例三:
System.out.println
(“結果是:“+(num 1 * num 2));
打破;
案例4: System.out.println
(“結果是:“+(num 1/num 2));打破;} } }