[java] long ll = 300000; int ii = (int)ll; 二、调用intValue()方法 [java] long ll = 300000; int ii= new Long(ll).intValue(); 三、先把long转换成字符串String,然后在转行成Integer [java] long ll = 300000; int ii = Integer.parseInt(String.valueOf(ll)); 这三种方法都比较简单明...
Convert long to int-->Declare int variable Declare int variable-->Convert int to long Convert int to long-->End 2. 步骤表格 3. 代码示例 步骤1:声明一个 long 变量 // 声明一个 long 变量longmyLong=100L; 1. 2. 步骤2:将 long 变量转换为 int 类型 // 将 long 变量转换为 int 类型intmy...
intunsignedInt=Integer.parseInt(binaryString,2); 1. 在这里,unsignedInt是一个int类型的值,表示了无符号二进制字符串的整数值。 完整代码示例 classUnsignedIntConverter{publicstaticintconvertToUnsignedInt(longvalue){StringbinaryString=Long.toBinaryString(value);intunsignedInt=Integer.parseInt(binaryString,2);...
@Test public void longToIntIntegerException() { long max = Integer.MAX_VALUE + 10L; assertThrows(ArithmeticException.class, () -> ConvertLongToInt.longToIntWithBigDecimal(max)); assertThrows(ArithmeticException.class, () -> ConvertLongToInt.longToIntJavaWithMath(max)); assertThrows(IllegalAr...
int inum = 110; /* Convert String to int in Java using valueOf() method * the value of variable inum2 would be negative after * conversion */ int inum2 = Integer.valueOf(str); //Adding up inum and inum2 int sum = inum+inum2; ...
从大类型到小类型的转换，例如从double到float、从long到int，是一种显式转换（explicit conversion），...
bytebyteVal=;intintVal=byteVal;或者是：intintVal2=100;doubled=intVal2;这样也没有问题。但是如果是下面这样就有问题了。 longlongVal=100;//这里会报错。Type mismatch: cannot convert from long to intintintVal3=longVal; 如果非要这样转，并且转换前的数据也是能够和更小类型兼容， 就需要使用强制转换。
int len=1; long count=9; int start=1; while(n>len*count){ n=n-len*count; //这里会报错error: incompatible types: possible lossy conversion from long to int,因为没有进行long->int的强制转换 len+=1; count=count*10; start=start*10; ...
4344//long转为int45Long n1 = 1000 * 100 * 85900L;46intm1 =n1.intValue();4748//或者49longn2 =1000 * 100 * 85900L;50intm2 = (int)n2;51intm3 = Math.toIntExact(n2);//long向int强转可能会出现数据溢出,Math.toIntExact()方法更为安全,在溢出的情况下会抛出ArithmeticException5253//int...
constructor and the static method bigdecimal.valueof(long val) . some may ask, which method to choose when we convert long to bigdecimal ? let’s first answer the question: we should use the static method over the constructor . next, we’ll understand why the static method is a better ...