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125 lines
2.3 KiB
Java
125 lines
2.3 KiB
Java
// Test StringBuffer.replace(), reverse(), insert(String), append(String),
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// and delete().
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public class StringBuffer_1
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{
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public static void main(String args[])
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{
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StringBuffer sb = new StringBuffer("45");
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sb.insert(0, "123");
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sb.append("89");
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sb.insert(5, "6");
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sb.insert(6, '7');
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System.out.println (sb);
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sb.delete (3, 99);
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String foo = sb.toString();
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System.out.println (foo);
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sb.reverse();
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System.out.println (foo);
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System.out.println (sb);
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sb = new StringBuffer("1234");
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System.out.println(sb.reverse());
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sb = new StringBuffer("123456789");
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sb.append ("0");
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System.out.println(sb);
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sb.replace (2, 99, "foo");
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System.out.println (sb);
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sb = new StringBuffer("123456789");
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sb.replace (1, 1, "XX");
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System.out.println (sb);
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sb = new StringBuffer("123456789");
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sb.replace (0, 2, "XX");
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System.out.println (sb);
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sb = new StringBuffer("123456789");
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sb.replace (5, 9, "54321");
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System.out.println (sb);
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sb = new StringBuffer("123456789");
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sb.delete (1,4);
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System.out.println (sb);
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// Test bounds checks
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try
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{
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sb.insert (-2, "x");
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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try
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{
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sb.insert (96, "x");
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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try
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{
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sb.delete (-2, 2);
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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try
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{
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sb.delete (96, 418);
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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try
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{
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sb.delete (4, 2);
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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try
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{
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sb.replace (-2, 2, "54321");
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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try
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{
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sb.replace (4, 2, "54321");
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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try
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{
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sb.replace (12, 18, "54321");
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}
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catch (StringIndexOutOfBoundsException x)
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{
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System.out.println (x.getClass());
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}
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}
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}
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