JAVA强制类型转换int转char Java中怎么把int型的数字转换成char型的数字？
java\u4e2dint\u600e\u6837\u8f6c\u6362\u6210charjava\u5c06int\u7c7b\u578b\u7684\u6570\u5b57\u8f6c\u6362\u6210char\u578b\uff0c\u4e3b\u8981\u662f\u901a\u8fc7\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\uff0c\u5982\u4e0b\u4ee3\u7801\uff1a
public class Int2CharDemo { public static void main(String[] args) { // \u5c06int\u7c7b\u578b\u6570\u5b578\u8f6c\u6362\u4e3achar\u7c7b\u578b\u6570\u5b578
int num1 = 8;
char ch1 = (char) (num1 + 48);
System.out.println("ch1 = " + ch1); // \u5c06char\u7c7b\u578b\u6570\u5b578\u8f6c\u6362\u4e3aint\u7c7b\u578b\u6570\u5b578
// \u65b9\u6cd5\u4e00\uff1a
Character ch2 = '8'; // char\u662f\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0cCharacter\u662f\u5176\u5305\u88c5\u7c7b\u578b\u3002
int num2 = Integer.parseInt(ch2.toString());
System.out.println("num2 = " + num2);
// \u65b9\u6cd5\u4e8c\uff1a
char ch3 = '8';
int num3 = ch3 - 48;
System.out.println("num3 = " + num3); }
\u6269\u5c55\u8d44\u6599\uff1a
\u5f53\u7f16\u8f91\u5e76\u8fd0\u884c\u4e00\u4e2aJava\u7a0b\u5e8f\u65f6\uff0c\u9700\u8981\u540c\u65f6\u6d89\u53ca\u5230\u8fd9\u56db\u79cd\u65b9\u9762\u3002\u4f7f\u7528\u6587\u5b57\u7f16\u8f91\u8f6f\u4ef6\uff08\u4f8b\u5982\u8bb0\u4e8b\u672c\u3001\u5199\u5b57\u677f\u3001UltraEdit\u7b49\uff09\u6216\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff08Eclipse\u3001MyEclipse\u7b49\uff09\u5728Java\u6e90\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e0d\u540c\u7684\u7c7b\u3002
C\u8bed\u8a00\u4e2d\u5982int\u3001long\u3001short\u7b49\u4e0d\u6307\u5b9asigned\u6216unsigned\u65f6\u90fd\u9ed8\u8ba4\u4e3asigned\uff0c\u4f46char\u5728\u6807\u51c6\u4e2d\u4e0d\u6307\u5b9a\u4e3asigned\u6216unsigned\uff0c\u7f16\u8bd1\u5668\u53ef\u4ee5\u7f16\u8bd1\u4e3a\u5e26\u7b26\u53f7\u7684\uff0c\u4e5f\u53ef\u4ee5\u7f16\u8bd1\u4e3a\u4e0d\u5e26\u7b26\u53f7\u7684\u3002
Java\u770b\u8d77\u6765\u8bbe\u8ba1\u5f97\u5f88\u50cfC++\uff0c\u4f46\u662f\u4e3a\u4e86\u4f7f\u8bed\u8a00\u5c0f\u548c\u5bb9\u6613\u719f\u6089\uff0c\u8bbe\u8ba1\u8005\u4eec\u628aC++\u8bed\u8a00\u4e2d\u8bb8\u591a\u53ef\u7528\u7684\u7279\u5f81\u53bb\u6389\u4e86\uff0c\u8fd9\u4e9b\u7279\u5f81\u662f\u4e00\u822c\u7a0b\u5e8f\u5458\u5f88\u5c11\u4f7f\u7528\u7684\u3002\u4f8b\u5982\uff0cJava\u4e0d\u652f\u6301go to\u8bed\u53e5\uff0c\u4ee3\u4e4b\u4ee5\u63d0\u4f9bbreak\u548ccontinue\u8bed\u53e5\u4ee5\u53ca\u5f02\u5e38\u5904\u7406\u3002
Java\u8fd8\u5254\u9664\u4e86C++\u7684\u64cd\u4f5c\u7b26\u8fc7\u8f7d\uff08overload\uff09\u548c\u591a\u7ee7\u627f\u7279\u5f81\uff0c\u5e76\u4e14\u4e0d\u4f7f\u7528\u4e3b\u6587\u4ef6\uff0c\u514d\u53bb\u4e86\u9884\u5904\u7406\u7a0b\u5e8f\u3002\u56e0\u4e3aJava\u6ca1\u6709\u7ed3\u6784\uff0c\u6570\u7ec4\u548c\u4e32\u90fd\u662f\u5bf9\u8c61\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u6307\u9488\u3002Java\u80fd\u591f\u81ea\u52a8\u5904\u7406\u5bf9\u8c61\u7684\u5f15\u7528\u548c\u95f4\u63a5\u5f15\u7528\uff0c\u5b9e\u73b0\u81ea\u52a8\u7684\u65e0\u7528\u5355\u5143\u6536\u96c6\uff0c\u4f7f\u7528\u6237\u4e0d\u5fc5\u4e3a\u5b58\u50a8\u7ba1\u7406\u95ee\u9898\u70e6\u607c\uff0c\u80fd\u66f4\u591a\u7684\u65f6\u95f4\u548c\u7cbe\u529b\u82b1\u5728\u7814\u53d1\u4e0a\u3002
public class Int2CharDemo { public static void main(String[] args) { // \u5c06int\u7c7b\u578b\u6570\u5b578\u8f6c\u6362\u4e3achar\u7c7b\u578b\u6570\u5b578
int num1 = 8;
char ch1 = (char) (num1 + 48);
System.out.println("ch1 = " + ch1); // \u5c06char\u7c7b\u578b\u6570\u5b578\u8f6c\u6362\u4e3aint\u7c7b\u578b\u6570\u5b578
// \u65b9\u6cd5\u4e00\uff1a
Character ch2 = '8'; // char\u662f\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0cCharacter\u662f\u5176\u5305\u88c5\u7c7b\u578b\u3002
int num2 = Integer.parseInt(ch2.toString());
System.out.println("num2 = " + num2);
// \u65b9\u6cd5\u4e8c\uff1a
char ch3 = '8';
int num3 = ch3 - 48;
System.out.println("num3 = " + num3); }
}
int a=100;
char b = (char) a;
/**
* JAVA强制类型转换int转char
* @author Jr
*
*/
public class AAA {
public static void main(String[] args) {
int a=100;
char b = (char)a;
System.out.println(b);
}
}
括号括错对象了朋友~~~~^_^
因为char是字符,最多只能少于两位数字才可以.这因为它的定义时的长度取决的.
如果返回的值是一个运算等式，括号还得在结果外面加下。比如大小写的转化。
public char lowercaseToUppercase(char character) {
// write your code here
return (char)(character-32);
}
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