一、十进制转换为二进制数
public void test(int number){
if (number==0){
System.out.println('0');
return;
}
char [] ch=new char[]{'0','1'};
StringBuffer sb=new StringBuffer();
for (int i = 0; i <32; i++){
int temp=number&1;
sb.append(ch[temp]);
number=number>>>1;
if (number==0) {
break;
}
}
System.out.println(sb.reverse());
}
二、十进制转换为八进制数
public void test(int number){
if (number==0){
System.out.println('0');
return;
}
char [] ch=new char[]{'0','1','2','3','4','5','6','7'};
StringBuffer sb=new StringBuffer();
for (;number!=0;){
int temp=number&7;
sb.append(ch[temp]);
number=number>>>3;
}
System.out.println(sb.reverse());
}
三、十进制转换为十六进制
public void test(int number){
if (number==0){
System.out.println('0');
return;
}
char [] ch=new char[]{'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
StringBuffer sb=new StringBuffer();
for (int i = 0; i < 8; i++){
int temp=number&15;
sb.append(ch[temp]);
number=number>>>4;
if (number==0){
break;
}
}
System.out.println(sb.reverse());
}
