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| 6. 14. 5. 指定的宽度和精度 |
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public class MainClass {
public static void main(String[] args) {
double x = 27.5, y = 33.75;
System.out.printf("x = %15f y = %8g", x, y);
}
}
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x = 27.500000 y = 33.7500 |
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public class MainClass {
public static void main(String[] args) {
int a = 5, b = 15, c = 255;
System.out.printf("a = %1$5d b = %2$5x c = %3$2o", a, b, c);
}
}
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a = 5 b = f c = 377 |
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public class MainClass {
public static void main(String[] args) {
int a = 5, b = 15, c = 255;
System.out.printf("%na = %1$-5d b = %2$-5x c = %3$-5o", a, b, c);
}
}
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a = 5 b = f c = 377 |
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public class MainClass {
public static void main(String[] args) {
double x = 27.5, y = 33.75;
System.out.printf("x = %15.2f y = %14.3g", x, y);
}
}
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x = 27.50 y = 33.8 |
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