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Implements String.delete(char oldChar, String newChar), StringBuffer and

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StringBuilder delete(int startIndex, int endIndex), and
replace (int startIndex, int endIndex, String replacementString)
This commit is contained in:
Eric Scharff
2007-10-29 15:07:36 -06:00
parent 78ee14fff5
commit bcd2c75f41
3 changed files with 52 additions and 0 deletions
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27
classpath/java/lang/String.java
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@ -228,6 +228,33 @@ public final class String implements Comparable<String> {
return -1;
}
public String replace(char oldChar, char newChar) {
if (data instanceof char[]) {
char[] buf = new char[length];
for (int i=0; i < length; i++) {
if (charAt(i) == oldChar) {
buf[i] = newChar;
} else {
buf[i] = charAt(i);
}
}
return new String(buf, 0, length, false);
} else {
byte[] buf = new byte[length];
byte[] orig = (byte[])data;
byte oldByte = (byte)oldChar;
byte newByte = (byte)newChar;
for (int i=0; i < length; i++) {
if (orig[i+offset] == oldByte) {
buf[i] = newByte;
} else {
buf[i] = orig[i+offset];
}
}
return new String(buf, 0, length, false);
}
}
public String substring(int start) {
return substring(start, length);
}