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標題: [作業] printf() 函式 (一) [打印本頁]

作者: tonyh 時間: 2021-12-25 20:21 標題: [作業] printf() 函式 (一)

本帖最後由 tonyh 於 2021-12-25 20:59 編輯

假設本練習中的四個變數分別為
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;

試利用printf()函式完成如下之執行畫面:

public class Ch100 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c); //四捨五入至小數點後1位
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b); //指定總長度為9個字元
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d); //指定總長度為9個字元，不足的部分以0補上
}
}

複製代碼

作者: 余柏緯 時間: 2022-1-8 16:23

public class Ch60 {
public static void main(String args[])
{
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 林鼎傑 時間: 2022-1-8 19:32

public class Ch01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 朱奕祐 時間: 2022-1-8 19:33

public class Ch01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 蔡寓珉 時間: 2022-1-8 19:34

public class Ch100 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 林佑宸 時間: 2022-1-8 19:35

public class Ch01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 呂尚霖 時間: 2022-1-8 19:38

public class Ch01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 黃子倢 時間: 2022-1-8 19:38

public class Ch01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 俞成章 時間: 2022-1-8 19:39

public class CH01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 王秉鈞 時間: 2022-1-8 19:40

public class Ch26 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%0.1f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 林土水 時間: 2022-1-8 19:41

public class Ch01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 許洧熏 時間: 2022-1-8 19:43

public class Ch01 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

作者: 陳志祐 時間: 2022-1-15 01:05

public class Ch70 {
public static void main(String[] args) {
double a=3.456789;
double b=34.56789;
double c=345.6789;
double d=3456.789;
System.out.printf("%.1f%n",c);
System.out.printf("%.0f%n",d);
System.out.printf("%9.2f%n",a);
System.out.printf("%9.2f%n",b);
System.out.printf("%09.2f%n",c);
System.out.printf("%09.2f%n",d);
}
}

複製代碼

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