Java by API/java.lang/Float
Содержание
- 1 Float: byteValue()
- 2 Float: compare(float f1, float f2)
- 3 Float: compareTo(Float anotherFloat)
- 4 Float: doubleValue()
- 5 Float: floatValue()
- 6 Float: intValue()
- 7 Float: isInfinite(float v)
- 8 Float.isNaN() Returns true if this Float value is a Not-a-Number (NaN),
- 9 Float.MAX_VALUE
- 10 Float.MIN_VALUE
- 11 Float: parseFloat(String s)
- 12 Float: shortValue()
- 13 Float: toString()
- 14 Float: toString(float f)
- 15 Float: valueOf(String stringValue)
- 16 new Float(float value)
- 17 new Float(String s)
Float: byteValue()
<source lang="java">
public class Main {
public static void main(String[] args) {
Float fObj = new Float("10.50");
byte b = fObj.byteValue();
System.out.println(b);
short s = fObj.shortValue();
System.out.println(s);
int i = fObj.intValue();
System.out.println(i);
float f = fObj.floatValue();
System.out.println(f);
double d = fObj.doubleValue();
System.out.println(d);
}
}
</source>
Float: compare(float f1, float f2)
<source lang="java">
public class Main {
public static void main(String[] args) {
float f1 = 5.5f;
float f2 = 5.4f;
int i1 = Float.rupare(f1, f2);
if (i1 > 0) {
System.out.println(">");
} else if (i1 < 0) {
System.out.println("<");
} else {
System.out.println("=");
}
Float fObj1 = new Float("5.5");
Float fObj2 = new Float("5.4");
int i2 = fObj1.rupareTo(fObj2);
if (i2 > 0) {
System.out.println(">");
} else if (i2 < 0) {
System.out.println("<");
} else {
System.out.println("=");
}
}
}
</source>
Float: compareTo(Float anotherFloat)
<source lang="java">
public class Main {
public static void main(String[] args) {
float f1 = 5.5f;
float f2 = 5.4f;
int i1 = Float.rupare(f1, f2);
if (i1 > 0) {
System.out.println(">");
} else if (i1 < 0) {
System.out.println("<");
} else {
System.out.println("=");
}
Float fObj1 = new Float("5.5");
Float fObj2 = new Float("5.4");
int i2 = fObj1.rupareTo(fObj2);
if (i2 > 0) {
System.out.println(">");
} else if (i2 < 0) {
System.out.println("<");
} else {
System.out.println("=");
}
}
}
</source>
Float: doubleValue()
<source lang="java">
public class Main {
public static void main(String[] args) {
Float fObj = new Float("10.50");
byte b = fObj.byteValue();
System.out.println(b);
short s = fObj.shortValue();
System.out.println(s);
int i = fObj.intValue();
System.out.println(i);
float f = fObj.floatValue();
System.out.println(f);
double d = fObj.doubleValue();
System.out.println(d);
}
}
</source>
Float: floatValue()
<source lang="java">
public class Main {
public static void main(String[] args) {
float a = (Float.valueOf(args[0])).floatValue();
float b = (Float.valueOf(args[1])).floatValue();
}
}
</source>
Float: intValue()
<source lang="java">
public class Main {
public static void main(String[] args) {
Float fObj = new Float("10.50");
byte b = fObj.byteValue();
System.out.println(b);
short s = fObj.shortValue();
System.out.println(s);
int i = fObj.intValue();
System.out.println(i);
float f = fObj.floatValue();
System.out.println(f);
double d = fObj.doubleValue();
System.out.println(d);
}
}
</source>
Float: isInfinite(float v)
<source lang="java">
public class Main {
public static void main(String[] args) {
float f = (float) 1 / 0;
boolean b1 = Float.isInfinite(f);
System.out.println(b1);
Float fObj = new Float(f);
boolean b2 = fObj.isInfinite();
System.out.println(b2);
}
}
</source>
Float.isNaN() Returns true if this Float value is a Not-a-Number (NaN),
<source lang="java">
public class Main {
public static void main(String[] args) {
float f = (float) Math.sqrt(-10);
boolean b1 = Float.isNaN(f);
System.out.println(b1);
Float fObj = new Float(f);
boolean b2 = fObj.isNaN();
System.out.println(b2);
}
}
</source>
Float.MAX_VALUE
<source lang="java">
public class Main {
public static void main(String[] args) {
System.out.println(Float.MIN_VALUE);
System.out.println(Float.MAX_VALUE);
}
} /* 1.4E-45 3.4028235E38
- /
</source>
Float.MIN_VALUE
<source lang="java">
public class Main {
public static void main(String[] args) {
System.out.println(Float.MIN_VALUE);
System.out.println(Float.MAX_VALUE);
}
} /* 1.4E-45 3.4028235E38
- /
</source>
Float: parseFloat(String s)
<source lang="java">
public class Main {
public static void main(String[] args) {
Float fObj1 = new Float("10.64");
System.out.println(fObj1);
Float fObj2 = Float.valueOf("10.76");
System.out.println(fObj2);
float f = Float.parseFloat("7.39");
System.out.println(f);
}
} /* 10.64 10.76 7.39
- /
</source>
Float: shortValue()
<source lang="java">
public class Main {
public static void main(String[] args) {
Float fObj = new Float("10.50");
byte b = fObj.byteValue();
System.out.println(b);
short s = fObj.shortValue();
System.out.println(s);
int i = fObj.intValue();
System.out.println(i);
float f = fObj.floatValue();
System.out.println(f);
double d = fObj.doubleValue();
System.out.println(d);
}
}
</source>
Float: toString()
<source lang="java">
public class Main {
public static void main(String[] args) {
Float fObj = new Float(10.25);
String str = fObj.toString();
System.out.println(str);
}
}
</source>
Float: toString(float f)
<source lang="java">
public class Main {
public static void main(String[] args) throws Exception {
String str = Float.toString(0.3F);
}
}
</source>
Float: valueOf(String stringValue)
<source lang="java">
/*
* Output:
true c 12 2 13245 12341234 11234.123 4.321324123412341E10
*/
public class MainClass {
public static void main(String args[]) {
Boolean bool = Boolean.valueOf("true");
Character c = new Character("c");
Byte b = Byte.valueOf("12");
Short s = Short.valueOf("2");
Integer i = Integer.valueOf("13245");
Long l = Long.valueOf("12341234");
Float f = Float.valueOf("11234.1234");
Double d = Double.valueOf("43213241234.123412341234");
System.out.println(bool);
System.out.println(c);
System.out.println(b);
System.out.println(s);
System.out.println(i);
System.out.println(l);
System.out.println(f);
System.out.println(d);
}
}
</source>
new Float(float value)
<source lang="java">
public class MainClass {
public static void main(String[] args) {
float f = -29.6f;
Float f2 = new Float(f);
System.out.println(f2.floatValue());
}
}
</source>
new Float(String s)
<source lang="java">
public class Main {
public static void main(String[] args) {
Float fObj = new Float("10.50");
byte b = fObj.byteValue();
System.out.println(b);
short s = fObj.shortValue();
System.out.println(s);
int i = fObj.intValue();
System.out.println(i);
float f = fObj.floatValue();
System.out.println(f);
double d = fObj.doubleValue();
System.out.println(d);
}
}
</source>
