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public class Test {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int i = 1;
String str = "1a34c";
for (int j = 0; j < str.length(); j++) {
char ch = str.charAt(j);
if (Character.isDigit(ch)) {
int sum = i + ch - '0';
System.out.println("sum = " + sum);
} else {
System.out.println(ch + " 这个字符不是数字");
}
}
}
}
public static void main(String args[]){
int i = 1;
String str="1234";
int sum=Integer.valueof(str.charAt(0));
sum+=i;
System.out.println(sum);
}
public class Test {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int i = 1;
String str = "1234";
int sum = i + Integer.parseInt("" + str.charAt(0));
System.out.println(sum);
}
}
public class Test9 {
public static void main(String args[]){
int i = 1;
String str="1234";
int sum=Character.getNumericValue(str.charAt(0));
sum+=i;
System.out.println(sum);
}
}
public class Test{
public static void main(String args[]){
String string = "123456";
int i = 1;
int sum = i + Character.getNumericValue(string.charAt(0));
System.out.println(sum);
}
}