127); // Maximum array size is Integer.MAX_VALUE //再比较,获取最小值 h = Math.min(i, Integer.MAX_VALUE - (-low) -1); } catch( NumberFormatException nfe) { // If the property cannot be parsed into an int, ignore it. //
因为 数组容量使用int类型数据进行标识, 所以我们认为数组容量MAX是 Integer.MAX_VALUE, 但是在编译器中定义运行,报错说OutOfMemoryError即内存不够。 因为JVM 需要为数组的元数据(描述数组属性-长度等)预留空间。 *//** * The maximum size of array to allocate. * Some VMs reserve some header words in an...
从JDK1.0开始,Integer中就定义了MIN_VALUE和MAX-VALUE两个常量: /** * A constant holding the minimum value an {@code int} can * have, -231. */ public static final int MIN_VALUE = 0x80000000; /** * A constant holding the maximum value an {@code int} can * have, 231-1. */ pub...
@Native public static final int MIN_VALUE = 0x80000000; 一个常数,持有了int类型数的最大值,2^31次方,2147483648,正21亿多 /** * A constant holding the maximum value an {@code int} can * have, 231-1. */ @Native public static final int MAX_VALUE = 0x7fffffff; 解释: 1、0x80000000 ...
(integerCacheHighPropValue != null) { int i = parseInt(integerCacheHighPropValue); i = Math.max(i, 127); // Maximum array size is Integer.MAX_VALUE h = Math.min(i, Integer.MAX_VALUE - (-low)); } high = h; cache = new Integer[(high - low) + 1]; int j = low; for(int...
Java.Lang Assembly: Mono.Android.dll A constant holding the maximum value anintcan have, 231-1. C# [Android.Runtime.Register("MAX_VALUE")]publicconstintMaxValue =2147483647; Field Value Value = 2147483647 Int32 Attributes RegisterAttribute...
sun.misc.VM.getSavedProperty("java.lang.Integer.IntegerCache.high"); if (integerCacheHighPropValue != null) {try {int i = parseInt(integerCacheHighPropValue); i = Math.max(i, 127);// Maximum array size is Integer.MAX_VALUEh = Math.min(i, Integer.MAX_VALUE - (-low) -1);} catch...
= null) {try {int i = parseInt(integerCacheHighPropValue); i = Math.max(i, 127);// Maximum array size is Integer.MAX_VALUEh = Math.min(i, Integer.MAX_VALUE - (-low) -1);} catch( NumberFormatException nfe) {// If the property cannot be parsed into an int, ignore it.}}high ...
static intMAX_VALUE A constant holding the maximum value an int can have, 231-1. static intMIN_VALUE A constant holding the minimum value an int can have, -231. static intSIZE The number of bits used to represent an int value in two's complement binary form. static Class<Integer>TYPE...
public Integer(int value) { this.value = value; } 引⽤⽹上⼀位博主的解释: JAVA设计者的初衷估计是这样的:如果开发者要做计算,就应该使⽤primitive value如果开发者要处理业务问题,就应该使⽤object,采⽤Generic机制;反正JAVA有auto-boxing/unboxing机制, ...