Java 中 long 累加器浮点值()方法,带示例
原文:https://www . geesforgeks . org/long 累加器-float value-method-in-Java-with-examples/
java。long 累加器. floatValue() 是 java 中的一个内置方法,它在扩展原语转换后以浮点形式返回当前值。
语法:
public float floatValue()
参数:该方法不接受任何参数。
返回值:该方法在一个加宽的原语转换后,以浮点形式返回当前值。
下面的程序说明了上述方法:
程序 1 :
// Program to demonstrate the floatValue() method
import java.lang.*;
import java.util.concurrent.atomic.LongAccumulator;
public class GFG {
public static void main(String args[])
{
LongAccumulator num = new LongAccumulator(Long::sum, 0L);
// accumulate operation on num
num.accumulate(42);
num.accumulate(10);
// Print before floatValue operation
System.out.println(" the old value is: " + num);
// floatValues current value
num.floatValue();
// Print after floatValue operation
System.out.println(" the current value is: " + num);
}
}
输出:
the old value is: 52
the current value is: 52
程序二 :
// Program to demonstrate the floatValue() method
import java.lang.*;
import java.util.concurrent.atomic.LongAccumulator;
public class GFG {
public static void main(String args[])
{
LongAccumulator num = new LongAccumulator(Long::sum, 0L);
// accumulate operation on num
num.accumulate(4);
num.accumulate(15);
// Print before floatValue operation
System.out.println(" the old value is: " + num);
// floatValues current value
num.floatValue();
// Print after floatValue operation
System.out.println(" the current value is: " + num);
}
}
输出:
the old value is: 19
the current value is: 19
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