我們知道輸出格式化數(shù)字可以使用printf()和format()方法。String類使用靜態(tài)方法format()返回一個String對象而不是PrintStream對象。
String類的靜態(tài)方法format()能用來創(chuàng)建可復(fù)用的格式化字符串,而不僅僅是用于一次打印輸出。如下所示:
System.out.printf( "The value of the float variable is " +
"%f, while the value of the integer " +
"variable is %d, and the string " +
"is %s" , floatVar, intVar, stringVar);
|
你也可以這樣寫
String fs;
fs = String.format(
"The value of the float variable is "
+
"%f, while the value of the integer "
+
"variable is %d, and the string "
+
"is %s"
, floatVar, intVar, stringVar);
System.out.println(fs);
![]() | ![]() .. 定價:¥45 優(yōu)惠價:¥42 更多書籍 |
![]() | ![]() .. 定價:¥225 優(yōu)惠價:¥213 更多書籍 |