package chap5;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class t1030 {
public static void main(String args[])throws Exception{
int num , choice;
BufferedReader br = new BufferedReader (new InputStreamReader(System.in));
boolean doit= true ;
while (doit){
System.out.println("請輸入數值");
num=Integer.parseInt(br.readLine());
if(num%2==0)
System.out.println(num+"為偶數");
else
System.out.println(num+"為奇數");
System.out.print("是否繼續執行? 繼續請輸入1 欲結束則輸入2");
choice = Integer.parseInt(br.readLine());
if(choice==2) {doit=false;
System.out.println("程式結束執行");
}
}
}
}
---
package chap5;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class t1030 {
public static void main(String args[]) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int num, choice;
boolean doit = true;
while (doit) {//當doit成立時,要一直做
System.out.println("請輸入數值");
num = Integer.parseInt(br.readLine());
if (num % 2 == 0)
System.out.println(num + "為偶數");
else
System.out.println(num + "為奇數");
System.out.print("是否繼續執行? 繼續請輸入1 欲結束請輸入2");
choice = Integer.parseInt(br.readLine());
if (choice == 2) {doit = false;
System.out.println("程式結束執行"); // 程式區塊
}
}
}
}
---
package chap5;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class t1030 {
public static void main(String args[]) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int num, choice;
String pointer="y",b="y";
while (pointer.equals(b)) {//字串物件 值的比較
System.out.println("請輸入數值");
num = Integer.parseInt(br.readLine());
if (num % 2 == 0){
System.out.println(num + "為偶數");}
else{
System.out.println(num + "為奇數");}
System.out.print("是否繼續執行? 繼續請輸入1 欲結束請輸入2");
choice = Integer.parseInt(br.readLine());
pointer=br.readLine();
System.out.println("pointer="+pointer);
} // while結束
System.out.println("程式結束執行"); // 程式區塊
}// main結束執行
} //class結束
---
package chap5;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class t1030 {
public static void main(String args[]) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int num, choice = 1;
while (choice==1) { //字串物件 值的比較
System.out.println("請輸入數值");
num = Integer.parseInt(br.readLine());
if (num % 2 == 0){
System.out.println(num + "為偶數");}
else{
System.out.println(num + "為奇數");}
System.out.print("是否繼續執行? 繼續請輸入1 欲結束請輸入2");
choice = Integer.parseInt(br.readLine());
System.out.println("choice="+choice);
} // while結束
System.out.println("程式結束執行"); // 程式區塊
}// main結束執行
} //class結束
---
package chap5;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class t1030 {
public static void main(String args[]) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int a,b;
System.out.println("請輸入第一個數值");
a = Integer.parseInt(br.readLine());
System.out.println("請輸入第二個數值");
b = Integer.parseInt(br.readLine());
if (a==b)
System.out.println("a = b");
else if (a>b)
System.out.println(a+">"+b);
else
System.out.println(a+"<"+b);
}
}
---
package chap5;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class t1030 {
public static void main(String args[]) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int proscore;
boolean doit = true;
while (doit){
System.out.println("請輸入數值");
proscore = Integer.parseInt(br.readLine());
if (proscore >= 80)
System.out.println("甲");
if (proscore >= 60)
System.out.println("乙");
if (proscore < 60)
System.out.println("丙");
}
}
}
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