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interface AB {
int a();
void b();
}
interface IJK {
boolean i();
void j();
int k();
}
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interface AB {
t a();
u b();
}interface IJK {
s i();
u j();
t k();
}
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AB : {a, b} â S*ÃS
AB(a) = (->t) = ((), t)
AB(b) = (->u) = ((), u)IJK : {i, j, k} â S*ÃS
IJK(i) = (->s) = ((), s)
IJK(j) = (->u) = ((), u)
IJK(k) = (->t) = ((), t)
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u next();
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ãã ããããããããã¨ã«ã¯ãåã®ååï¼ï¼ã½ã¼ãï¼ã®ãªãã¼ã ã¯ãoldSort |â newSort ã¨èããã»ããããã®ã§ãï¼ã§ãããã¾ãæ°ã«ããªãã¦ããã§ãï¼ãä¾ãã°ãS = {s, t, u}ã«å¯¾ãã¦ã{s |â boolean, t |â int, u |â void } ã¨ãããªãã¼ã ãABã«æ½ãã¨ï¼
int a();
void b();
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interface ByteInputStream {
int peek();
void next();
}
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interface ByteInputStream {
int peek();
void next();
}interface IJK {
boolean i();
void j();
int k();
}
interface ByteInputStream ã®ã¡ã½ããåï¼ï¼æ¼ç®åè¨å·ï¼ã®éå{peek, next}ãããinterface IJK ã®ã¡ã½ããåï¼ï¼æ¼ç®åè¨å·ï¼ã®éå{i, j, k}ã¸ã®åå{peek |â k, next |â j}ãèãã¾ãããã®ååã¯ãªãã¼ã ã¿ãããªããã§ããã次ã®ç¹å¾´ãæã¡ã¾ãã
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class FooIJK implements IJK {
public boolean i() {
return true;
}
public void j() {}
public int k() {
return 0;
}
}
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class FooByteInputStream implements ByteInputStream {
private final IJK ijk;
public FooByteInputStream() {
ijk = new FooIJK();
}
public int peek() {
return ijk.k(); // peek |âk
}
public void next() {
ijk.j(); // next |â j
}
}
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interface ByteInputStream {
int peek();
void next();
}interface IJK {
boolean i();
void j();
int k();
}
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// ByteInputStream bisã®ä½¿ç¨ä¾
int readByte() {
int x = bis.peek();
bis.next();
return x;
}// IJK ijkã®ä½¿ç¨ä¾
int h() {
int x = ijk.k();
ijk.j();
return x;
}
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