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| 6. 14. 4. 格式化数值数据： |
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public class MainClass {
public static void main(String[] a) {
double x = 27.5, y = 33.75;
System.out.printf("x = %f y = %g", 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 = %d b = %x c = %o", 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 = %2$f y = %1$g", x, y);
}
}
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x = 33.750000 y = 27.5000 |
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public class MainClass {
public static void main(String[] args) {
int a = 5, b = 15, c = 255;
System.out.printf("a = %3$d b = %1$x c = %2$o", a, b, c);
}
}
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a = 255 b = 5 c = 17 |
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