package test;
public class MaxIntSum {
public static void main(String[] args) {
String a="199999999999999999999999999999999";
String b="10";
int max=a.length()>=b.length()?a.length():b.length();
int []ch_a=new int[max+1];
int []ch_b=new int[max+1];
int []ch_c=new int[max+1];
for (int i = 0; i < max; i++) {
int k=max+1-a.length();
// System.out.println(Integer.parseInt(a.charAt(i)+""));
try {
// System.out.println(Integer.parseInt(b.charAt(i)+""));
ch_a[k+i]=Integer.parseInt(a.charAt(i)+"");
} catch (StringIndexOutOfBoundsException e) {
// TODO: handle exception
}
k=max+1-b.length();
try {
// System.out.println(Integer.parseInt(b.charAt(i)+""));
ch_b[k+i]=Integer.parseInt(b.charAt(i)+"");
} catch (StringIndexOutOfBoundsException e) {
// TODO: handle exception
}
}
for (int c : ch_a) {
System.out.print(c);
}
System.out.println();
for (int c : ch_b) {
System.out.print(c);
}
for (int i = ch_c.length-1; i >=0 ; i--) {
if(ch_a[i]+ch_b[i]>9&&i>0){
ch_a[i-1]+=1;
}
ch_c[i]=(ch_a[i]+ch_b[i])%10;
}
System.out.println();
for (int i = 0; i < ch_c.length; i++) {
if(i==0&&ch_c[i]==0){
}else{
System.out.print(ch_c[i]);
}
}
}
}
大整数相加java实现
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转载自blog.csdn.net/qq_33202508/article/details/83659272
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