String API in Java | #47 | Various insert() Methods of the StringBuffer Class in Java

public synchronized StringBuffer insert(int index, char[] str, int offset, int len) : 0:29
public synchronized StringBuffer insert(int offset, Object obj) : 3:49
public synchronized StringBuffer insert(int offset, String str) : 5:56
public synchronized StringBuffer insert(int offset, char[] str) : 9:58
public StringBuffer insert(int dstOffset, CharSequence s) : 11:40
public synchronized StringBuffer insert(int dstOffset, CharSequence s, int start, int end) : 14:34
public StringBuffer insert(int offset, boolean b) : 17:07
public synchronized StringBuffer insert(int offset, char c) : 18:16

Last four 18:15
public StringBuffer insert(int offset, int i)
public StringBuffer insert(int offset, long l)
public StringBuffer insert(int offset, float f)
public StringBuffer insert(int offset, double d)

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