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tonyh發表於 2021-1-27 13:43 | 只看該作者

printf() 輸出練習

試以 printf() 方法做字串輸出。
%d 整數
%s 字串
%S 轉換為大寫字母的字串
%.2f 四捨五入至小數點後2位

public class Ch60
{
public static void main(String[] args)
{
String str1="dog", str2="cat";
int a=3, b=5;
double total=21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weigh %.2f pounds.",a,str1,b,str2,total);
}
}

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2^#

卓炘暘發表於 2021-1-27 13:56 | 只看該作者

import java.util.Scanner;
public class Ch01
{
public static void main(String[] args)
{
String str1="dog", str2="cat";
int a=3, b=5;
double total=21.3568;
System.out.printf(" There are %d %ss and %d %Ss totally weigh %.2f pounds.",a,str1,b,str2,total);
}
}

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3^#

劉凱閔發表於 2021-1-27 13:56 | 只看該作者

public class Ch05 {
public static void main(String[] args)
{
String str1="dog", str2="cat";
int a=3, b=5;
double total=21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weigh %.2f pounds.",a,str1,b,str2,total);
}

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4^#

王睿宇發表於 2021-1-27 13:56 | 只看該作者

public class AS02 {
public static void main(String[] args) {
String a="dog", b="cat";
int x=7, y=4;
double n=35.1493;
System.out.printf("There are %d %Ss and %d %ss and totally weight %.2f pounds",x,a,y,b,n);
}
}

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5^#

吳聲寬發表於 2021-1-27 13:56 | 只看該作者

public class Ch10
{
public static void main(String[] args)
{
String str1="dog",str2="cat";
int a=3,b=5;
double total=21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weigh %.2f pounds.",a,str1,b,str2,total);
}
}

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6^#

李柏穎發表於 2021-1-27 13:56 | 只看該作者

import java.util.Scanner;
public class Ch01
{
public static void main(String[] args)
{
String str1="dog", str2="cat";
int a=3, b=5;
double c=21.3568;
System.out.printf("There are %d %ss and %d %Ss totallt weight %.2f pounds",a,str1,b,str2,c);
}
}

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7^#

楊澤全發表於 2021-1-27 13:56 | 只看該作者

public class Ch08
{
public static void main(String[] args)
{
String str1="dog",str2="cat";
int a=3,b=5;
double total =21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weigh %.2f pounds.",a,str1,b,str2,total);
}
}

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8^#

楊小萱發表於 2021-1-27 13:57 | 只看該作者

public class Ch05
{
public static void main(String[] args)
{
String str1="dog",str2="cat";
int a=3,b=5;
double total=21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weigh %.2f pounds.",a,str1,b,str2,total);
}
}

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9^#

紀承典發表於 2021-1-27 13:58 | 只看該作者

public class Ch50 {
public static void main(String[] args)
{
String str1="dog", str2="cat";
int a=3, b=5;
double total=21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weigh%.2f pounds.",a,str1,b,str2,total);
}
}

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10^#

王博裕發表於 2021-1-27 13:58 | 只看該作者

import java.util.Scanner;
public class Ch05 {
public static void main(String[] args) {
String str1="dog",str2="cat";
int a=3,b=5;
double total=21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weight %.2f pounds.",a,str1,b,str2,total);
}
}

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11^#

藍健洲發表於 2021-1-27 13:59 | 只看該作者

public class Ch01 {
public static void main(String[]args)
{
String str1="dog", str2="cat";
int a=3, b=5;
double total=21.3568;
System.out.printf("There are %d %ss and %d %Ss totally weigh %.2f pound.",a,str1,b,str2,total);
}
}

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