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>